2551171280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:362

約数の個数: 240

約数和(自身を含む): 7193753856

約数和(自身を除く): 4642582576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 49, 56, 61, 70, 80, 94, 98, 112, 122, 140, 188, 196, 227, 235, 244, 245, 280, 305, 329, 376, 392, 427, 454, 470, 488, 490, 560, 610, 658, 752, 784, 854, 908, 940, 976, 980, 1135, 1220, 1316, 1589, 1645, 1708, 1816, 1880, 1960, 2135, 2270, 2303, 2440, 2632, 2867, 2989, 3178, 3290, 3416, 3632, 3760, 3920, 4270, 4540, 4606, 4880, 5264, 5734, 5978, 6356, 6580, 6832, 7945, 8540, 9080, 9212, 10669, 11123, 11468, 11515, 11956, 12712, 13160, 13847, 14335, 14945, 15890, 17080, 18160, 18424, 20069, 21338, 22246, 22936, 23030, 23912, 25424, 26320, 27694, 28670, 29890, 31780, 34160, 36848, 40138, 42676, 44492, 45872, 46060, 47824, 53345, 55388, 55615, 57340, 59780, 63560, 69235, 74683, 80276, 85352, 88984, 92120, 96929, 100345, 106690, 110776, 111230, 114680, 119560, 127120, 138470, 140483, 149366, 160552, 170704, 177968, 184240, 193858, 200690, 213380, 221552, 222460, 229360, 239120, 276940, 280966, 298732, 321104, 373415, 387716, 401380, 426760, 444920, 484645, 522781, 553880, 561932, 597464, 650809, 678503, 702415, 746830, 775432, 802760, 853520, 889840, 969290, 1045562, 1107760, 1123864, 1194928, 1301618, 1357006, 1404830, 1493660, 1550864, 1605520, 1938580, 2091124, 2247728, 2603236, 2613905, 2714012, 2809660, 2987320, 3254045, 3392515, 3877160, 4182248, 4555663, 5206472, 5227810, 5428024, 5619320, 5974640, 6508090, 6785030, 7754320, 8364496, 9111326, 10412944, 10455620, 10856048, 11238640, 13016180, 13570060, 18222652, 20911240, 22778315, 26032360, 27140120, 31889641, 36445304, 41822480, 45556630, 52064720, 54280240, 63779282, 72890608, 91113260, 127558564, 159448205, 182226520, 255117128, 318896410, 364453040, 510234256, 637792820, 1275585640, 2551171280]

約数ペア:

[(1, 2551171280), (2, 1275585640), (4, 637792820), (5, 510234256), (7, 364453040), (8, 318896410), (10, 255117128), (14, 182226520), (16, 159448205), (20, 127558564), (28, 91113260), (35, 72890608), (40, 63779282), (47, 54280240), (49, 52064720), (56, 45556630), (61, 41822480), (70, 36445304), (80, 31889641), (94, 27140120), (98, 26032360), (112, 22778315), (122, 20911240), (140, 18222652), (188, 13570060), (196, 13016180), (227, 11238640), (235, 10856048), (244, 10455620), (245, 10412944), (280, 9111326), (305, 8364496), (329, 7754320), (376, 6785030), (392, 6508090), (427, 5974640), (454, 5619320), (470, 5428024), (488, 5227810), (490, 5206472), (560, 4555663), (610, 4182248), (658, 3877160), (752, 3392515), (784, 3254045), (854, 2987320), (908, 2809660), (940, 2714012), (976, 2613905), (980, 2603236), (1135, 2247728), (1220, 2091124), (1316, 1938580), (1589, 1605520), (1645, 1550864), (1708, 1493660), (1816, 1404830), (1880, 1357006), (1960, 1301618), (2135, 1194928), (2270, 1123864), (2303, 1107760), (2440, 1045562), (2632, 969290), (2867, 889840), (2989, 853520), (3178, 802760), (3290, 775432), (3416, 746830), (3632, 702415), (3760, 678503), (3920, 650809), (4270, 597464), (4540, 561932), (4606, 553880), (4880, 522781), (5264, 484645), (5734, 444920), (5978, 426760), (6356, 401380), (6580, 387716), (6832, 373415), (7945, 321104), (8540, 298732), (9080, 280966), (9212, 276940), (10669, 239120), (11123, 229360), (11468, 222460), (11515, 221552), (11956, 213380), (12712, 200690), (13160, 193858), (13847, 184240), (14335, 177968), (14945, 170704), (15890, 160552), (17080, 149366), (18160, 140483), (18424, 138470), (20069, 127120), (21338, 119560), (22246, 114680), (22936, 111230), (23030, 110776), (23912, 106690), (25424, 100345), (26320, 96929), (27694, 92120), (28670, 88984), (29890, 85352), (31780, 80276), (34160, 74683), (36848, 69235), (40138, 63560), (42676, 59780), (44492, 57340), (45872, 55615), (46060, 55388), (47824, 53345)]