2780720320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{3557}}^1$

素因数の和:3930

約数の個数: 112

約数和(自身を含む): 7591348800

約数和(自身を除く): 4810628480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 349, 448, 560, 698, 1120, 1396, 1745, 2240, 2443, 2792, 3490, 3557, 4886, 5584, 6980, 7114, 9772, 11168, 12215, 13960, 14228, 17785, 19544, 22336, 24430, 24899, 27920, 28456, 35570, 39088, 48860, 49798, 55840, 56912, 71140, 78176, 97720, 99596, 111680, 113824, 124495, 142280, 156352, 195440, 199192, 227648, 248990, 284560, 390880, 398384, 497980, 569120, 781760, 796768, 995960, 1138240, 1241393, 1593536, 1991920, 2482786, 3983840, 4965572, 6206965, 7967680, 8689751, 9931144, 12413930, 17379502, 19862288, 24827860, 34759004, 39724576, 43448755, 49655720, 69518008, 79449152, 86897510, 99311440, 139036016, 173795020, 198622880, 278072032, 347590040, 397245760, 556144064, 695180080, 1390360160, 2780720320]

約数ペア:

[(1, 2780720320), (2, 1390360160), (4, 695180080), (5, 556144064), (7, 397245760), (8, 347590040), (10, 278072032), (14, 198622880), (16, 173795020), (20, 139036016), (28, 99311440), (32, 86897510), (35, 79449152), (40, 69518008), (56, 49655720), (64, 43448755), (70, 39724576), (80, 34759004), (112, 24827860), (140, 19862288), (160, 17379502), (224, 12413930), (280, 9931144), (320, 8689751), (349, 7967680), (448, 6206965), (560, 4965572), (698, 3983840), (1120, 2482786), (1396, 1991920), (1745, 1593536), (2240, 1241393), (2443, 1138240), (2792, 995960), (3490, 796768), (3557, 781760), (4886, 569120), (5584, 497980), (6980, 398384), (7114, 390880), (9772, 284560), (11168, 248990), (12215, 227648), (13960, 199192), (14228, 195440), (17785, 156352), (19544, 142280), (22336, 124495), (24430, 113824), (24899, 111680), (27920, 99596), (28456, 97720), (35570, 78176), (39088, 71140), (48860, 56912), (49798, 55840)]