2051489960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{971}}^1$

素因数の和:1251

約数の個数: 128

約数和(自身を含む): 5290790400

約数和(自身を除く): 3239300440

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 239, 260, 340, 442, 478, 520, 680, 884, 956, 971, 1105, 1195, 1768, 1912, 1942, 2210, 2390, 3107, 3884, 4063, 4420, 4780, 4855, 6214, 7768, 8126, 8840, 9560, 9710, 12428, 12623, 15535, 16252, 16507, 19420, 20315, 24856, 25246, 31070, 32504, 33014, 38840, 40630, 50492, 52819, 62140, 63115, 66028, 81260, 82535, 100984, 105638, 124280, 126230, 132056, 162520, 165070, 211276, 214591, 232069, 252460, 264095, 330140, 422552, 429182, 464138, 504920, 528190, 660280, 858364, 928276, 1056380, 1072955, 1160345, 1716728, 1856552, 2112760, 2145910, 2320690, 3016897, 3945173, 4291820, 4641380, 6033794, 7890346, 8583640, 9282760, 12067588, 15084485, 15780692, 19725865, 24135176, 30168970, 31561384, 39451730, 51287249, 60337940, 78903460, 102574498, 120675880, 157806920, 205148996, 256436245, 410297992, 512872490, 1025744980, 2051489960]

約数ペア:

[(1, 2051489960), (2, 1025744980), (4, 512872490), (5, 410297992), (8, 256436245), (10, 205148996), (13, 157806920), (17, 120675880), (20, 102574498), (26, 78903460), (34, 60337940), (40, 51287249), (52, 39451730), (65, 31561384), (68, 30168970), (85, 24135176), (104, 19725865), (130, 15780692), (136, 15084485), (170, 12067588), (221, 9282760), (239, 8583640), (260, 7890346), (340, 6033794), (442, 4641380), (478, 4291820), (520, 3945173), (680, 3016897), (884, 2320690), (956, 2145910), (971, 2112760), (1105, 1856552), (1195, 1716728), (1768, 1160345), (1912, 1072955), (1942, 1056380), (2210, 928276), (2390, 858364), (3107, 660280), (3884, 528190), (4063, 504920), (4420, 464138), (4780, 429182), (4855, 422552), (6214, 330140), (7768, 264095), (8126, 252460), (8840, 232069), (9560, 214591), (9710, 211276), (12428, 165070), (12623, 162520), (15535, 132056), (16252, 126230), (16507, 124280), (19420, 105638), (20315, 100984), (24856, 82535), (25246, 81260), (31070, 66028), (32504, 63115), (33014, 62140), (38840, 52819), (40630, 50492)]