85456540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 196823088

約数和(自身を除く): 111366548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 169, 193, 260, 262, 338, 386, 524, 655, 676, 772, 845, 965, 1310, 1690, 1703, 1930, 2509, 2620, 3380, 3406, 3860, 5018, 6812, 8515, 10036, 12545, 17030, 22139, 25090, 25283, 32617, 34060, 44278, 50180, 50566, 65234, 88556, 101132, 110695, 126415, 130468, 163085, 221390, 252830, 326170, 328679, 442780, 505660, 652340, 657358, 1314716, 1643395, 3286790, 4272827, 6573580, 8545654, 17091308, 21364135, 42728270, 85456540]

約数ペア:

[(1, 85456540), (2, 42728270), (4, 21364135), (5, 17091308), (10, 8545654), (13, 6573580), (20, 4272827), (26, 3286790), (52, 1643395), (65, 1314716), (130, 657358), (131, 652340), (169, 505660), (193, 442780), (260, 328679), (262, 326170), (338, 252830), (386, 221390), (524, 163085), (655, 130468), (676, 126415), (772, 110695), (845, 101132), (965, 88556), (1310, 65234), (1690, 50566), (1703, 50180), (1930, 44278), (2509, 34060), (2620, 32617), (3380, 25283), (3406, 25090), (3860, 22139), (5018, 17030), (6812, 12545), (8515, 10036)]