251685280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:723

約数の個数: 192

約数和(自身を含む): 766402560

約数和(自身を除く): 514717280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 32, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 110, 112, 124, 140, 154, 155, 160, 176, 217, 220, 224, 248, 280, 308, 310, 341, 352, 385, 434, 440, 496, 560, 616, 620, 659, 682, 770, 868, 880, 992, 1085, 1120, 1232, 1240, 1318, 1364, 1540, 1705, 1736, 1760, 2170, 2387, 2464, 2480, 2636, 2728, 3080, 3295, 3410, 3472, 4340, 4613, 4774, 4960, 5272, 5456, 6160, 6590, 6820, 6944, 7249, 8680, 9226, 9548, 10544, 10912, 11935, 12320, 13180, 13640, 14498, 17360, 18452, 19096, 20429, 21088, 23065, 23870, 26360, 27280, 28996, 34720, 36245, 36904, 38192, 40858, 46130, 47740, 50743, 52720, 54560, 57992, 72490, 73808, 76384, 81716, 92260, 95480, 101486, 102145, 105440, 115984, 143003, 144980, 147616, 163432, 184520, 190960, 202972, 204290, 224719, 231968, 253715, 286006, 289960, 326864, 369040, 381920, 405944, 408580, 449438, 507430, 572012, 579920, 653728, 715015, 738080, 811888, 817160, 898876, 1014860, 1123595, 1144024, 1159840, 1430030, 1573033, 1623776, 1634320, 1797752, 2029720, 2247190, 2288048, 2860060, 3146066, 3268640, 3595504, 4059440, 4494380, 4576096, 5720120, 6292132, 7191008, 7865165, 8118880, 8988760, 11440240, 12584264, 15730330, 17977520, 22880480, 25168528, 31460660, 35955040, 50337056, 62921320, 125842640, 251685280]

約数ペア:

[(1, 251685280), (2, 125842640), (4, 62921320), (5, 50337056), (7, 35955040), (8, 31460660), (10, 25168528), (11, 22880480), (14, 17977520), (16, 15730330), (20, 12584264), (22, 11440240), (28, 8988760), (31, 8118880), (32, 7865165), (35, 7191008), (40, 6292132), (44, 5720120), (55, 4576096), (56, 4494380), (62, 4059440), (70, 3595504), (77, 3268640), (80, 3146066), (88, 2860060), (110, 2288048), (112, 2247190), (124, 2029720), (140, 1797752), (154, 1634320), (155, 1623776), (160, 1573033), (176, 1430030), (217, 1159840), (220, 1144024), (224, 1123595), (248, 1014860), (280, 898876), (308, 817160), (310, 811888), (341, 738080), (352, 715015), (385, 653728), (434, 579920), (440, 572012), (496, 507430), (560, 449438), (616, 408580), (620, 405944), (659, 381920), (682, 369040), (770, 326864), (868, 289960), (880, 286006), (992, 253715), (1085, 231968), (1120, 224719), (1232, 204290), (1240, 202972), (1318, 190960), (1364, 184520), (1540, 163432), (1705, 147616), (1736, 144980), (1760, 143003), (2170, 115984), (2387, 105440), (2464, 102145), (2480, 101486), (2636, 95480), (2728, 92260), (3080, 81716), (3295, 76384), (3410, 73808), (3472, 72490), (4340, 57992), (4613, 54560), (4774, 52720), (4960, 50743), (5272, 47740), (5456, 46130), (6160, 40858), (6590, 38192), (6820, 36904), (6944, 36245), (7249, 34720), (8680, 28996), (9226, 27280), (9548, 26360), (10544, 23870), (10912, 23065), (11935, 21088), (12320, 20429), (13180, 19096), (13640, 18452), (14498, 17360)]