81491280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26119}}^1$

素因数の和:26148

約数の個数: 80

約数和(自身を含む): 272065920

約数和(自身を除く): 190574640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 26119, 52238, 78357, 104476, 130595, 156714, 208952, 261190, 313428, 339547, 391785, 417904, 522380, 626856, 679094, 783570, 1018641, 1044760, 1253712, 1358188, 1567140, 1697735, 2037282, 2089520, 2716376, 3134280, 3395470, 4074564, 5093205, 5432752, 6268560, 6790940, 8149128, 10186410, 13581880, 16298256, 20372820, 27163760, 40745640, 81491280]

約数ペア:

[(1, 81491280), (2, 40745640), (3, 27163760), (4, 20372820), (5, 16298256), (6, 13581880), (8, 10186410), (10, 8149128), (12, 6790940), (13, 6268560), (15, 5432752), (16, 5093205), (20, 4074564), (24, 3395470), (26, 3134280), (30, 2716376), (39, 2089520), (40, 2037282), (48, 1697735), (52, 1567140), (60, 1358188), (65, 1253712), (78, 1044760), (80, 1018641), (104, 783570), (120, 679094), (130, 626856), (156, 522380), (195, 417904), (208, 391785), (240, 339547), (260, 313428), (312, 261190), (390, 208952), (520, 156714), (624, 130595), (780, 104476), (1040, 78357), (1560, 52238), (3120, 26119)]