31991570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 65197440

約数和(自身を除く): 33205870

約数列:

[1, 2, 5, 10, 13, 26, 43, 59, 65, 86, 97, 118, 130, 194, 215, 295, 430, 485, 559, 590, 767, 970, 1118, 1261, 1534, 2522, 2537, 2795, 3835, 4171, 5074, 5590, 5723, 6305, 7670, 8342, 11446, 12610, 12685, 20855, 25370, 28615, 32981, 41710, 54223, 57230, 65962, 74399, 108446, 148798, 164905, 246089, 271115, 329810, 371995, 492178, 542230, 743990, 1230445, 2460890, 3199157, 6398314, 15995785, 31991570]

約数ペア:

[(1, 31991570), (2, 15995785), (5, 6398314), (10, 3199157), (13, 2460890), (26, 1230445), (43, 743990), (59, 542230), (65, 492178), (86, 371995), (97, 329810), (118, 271115), (130, 246089), (194, 164905), (215, 148798), (295, 108446), (430, 74399), (485, 65962), (559, 57230), (590, 54223), (767, 41710), (970, 32981), (1118, 28615), (1261, 25370), (1534, 20855), (2522, 12685), (2537, 12610), (2795, 11446), (3835, 8342), (4171, 7670), (5074, 6305), (5590, 5723)]