78427960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3209}}^1$

素因数の和:3280

約数の個数: 64

約数和(自身を含む): 194140800

約数和(自身を除く): 115712840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1222, 1880, 2444, 3055, 3209, 4888, 6110, 6418, 12220, 12836, 16045, 24440, 25672, 32090, 41717, 64180, 83434, 128360, 150823, 166868, 208585, 301646, 333736, 417170, 603292, 754115, 834340, 1206584, 1508230, 1668680, 1960699, 3016460, 3921398, 6032920, 7842796, 9803495, 15685592, 19606990, 39213980, 78427960]

約数ペア:

[(1, 78427960), (2, 39213980), (4, 19606990), (5, 15685592), (8, 9803495), (10, 7842796), (13, 6032920), (20, 3921398), (26, 3016460), (40, 1960699), (47, 1668680), (52, 1508230), (65, 1206584), (94, 834340), (104, 754115), (130, 603292), (188, 417170), (235, 333736), (260, 301646), (376, 208585), (470, 166868), (520, 150823), (611, 128360), (940, 83434), (1222, 64180), (1880, 41717), (2444, 32090), (3055, 25672), (3209, 24440), (4888, 16045), (6110, 12836), (6418, 12220)]