78902720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1459}}^1$

素因数の和:1502

約数の個数: 84

約数和(自身を含む): 203591160

約数和(自身を除く): 124688440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 169, 208, 260, 320, 338, 416, 520, 676, 832, 845, 1040, 1352, 1459, 1690, 2080, 2704, 2918, 3380, 4160, 5408, 5836, 6760, 7295, 10816, 11672, 13520, 14590, 18967, 23344, 27040, 29180, 37934, 46688, 54080, 58360, 75868, 93376, 94835, 116720, 151736, 189670, 233440, 246571, 303472, 379340, 466880, 493142, 606944, 758680, 986284, 1213888, 1232855, 1517360, 1972568, 2465710, 3034720, 3945136, 4931420, 6069440, 7890272, 9862840, 15780544, 19725680, 39451360, 78902720]

約数ペア:

[(1, 78902720), (2, 39451360), (4, 19725680), (5, 15780544), (8, 9862840), (10, 7890272), (13, 6069440), (16, 4931420), (20, 3945136), (26, 3034720), (32, 2465710), (40, 1972568), (52, 1517360), (64, 1232855), (65, 1213888), (80, 986284), (104, 758680), (130, 606944), (160, 493142), (169, 466880), (208, 379340), (260, 303472), (320, 246571), (338, 233440), (416, 189670), (520, 151736), (676, 116720), (832, 94835), (845, 93376), (1040, 75868), (1352, 58360), (1459, 54080), (1690, 46688), (2080, 37934), (2704, 29180), (2918, 27040), (3380, 23344), (4160, 18967), (5408, 14590), (5836, 13520), (6760, 11672), (7295, 10816)]