768806480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{7621}}^1$

素因数の和:7744

約数の個数: 80

約数和(自身を含む): 1945073424

約数和(自身を除く): 1176266944

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1552, 1940, 2522, 3880, 5044, 6305, 7621, 7760, 10088, 12610, 15242, 20176, 25220, 30484, 38105, 50440, 60968, 76210, 99073, 100880, 121936, 152420, 198146, 304840, 396292, 495365, 609680, 739237, 792584, 990730, 1478474, 1585168, 1981460, 2956948, 3696185, 3962920, 5913896, 7392370, 7925840, 9610081, 11827792, 14784740, 19220162, 29569480, 38440324, 48050405, 59138960, 76880648, 96100810, 153761296, 192201620, 384403240, 768806480]

約数ペア:

[(1, 768806480), (2, 384403240), (4, 192201620), (5, 153761296), (8, 96100810), (10, 76880648), (13, 59138960), (16, 48050405), (20, 38440324), (26, 29569480), (40, 19220162), (52, 14784740), (65, 11827792), (80, 9610081), (97, 7925840), (104, 7392370), (130, 5913896), (194, 3962920), (208, 3696185), (260, 2956948), (388, 1981460), (485, 1585168), (520, 1478474), (776, 990730), (970, 792584), (1040, 739237), (1261, 609680), (1552, 495365), (1940, 396292), (2522, 304840), (3880, 198146), (5044, 152420), (6305, 121936), (7621, 100880), (7760, 99073), (10088, 76210), (12610, 60968), (15242, 50440), (20176, 38105), (25220, 30484)]