31240580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 77531328

約数和(自身を除く): 46290748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 163, 185, 259, 326, 370, 518, 652, 740, 815, 1036, 1141, 1295, 1369, 1630, 2282, 2590, 2738, 3260, 4564, 5180, 5476, 5705, 6031, 6845, 9583, 11410, 12062, 13690, 19166, 22820, 24124, 27380, 30155, 38332, 42217, 47915, 60310, 84434, 95830, 120620, 168868, 191660, 211085, 223147, 422170, 446294, 844340, 892588, 1115735, 1562029, 2231470, 3124058, 4462940, 6248116, 7810145, 15620290, 31240580]

約数ペア:

[(1, 31240580), (2, 15620290), (4, 7810145), (5, 6248116), (7, 4462940), (10, 3124058), (14, 2231470), (20, 1562029), (28, 1115735), (35, 892588), (37, 844340), (70, 446294), (74, 422170), (140, 223147), (148, 211085), (163, 191660), (185, 168868), (259, 120620), (326, 95830), (370, 84434), (518, 60310), (652, 47915), (740, 42217), (815, 38332), (1036, 30155), (1141, 27380), (1295, 24124), (1369, 22820), (1630, 19166), (2282, 13690), (2590, 12062), (2738, 11410), (3260, 9583), (4564, 6845), (5180, 6031), (5476, 5705)]