81390972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 214502400

約数和(自身を除く): 133111428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 59, 74, 78, 111, 118, 148, 156, 177, 222, 236, 239, 354, 444, 478, 481, 708, 717, 767, 956, 962, 1434, 1443, 1534, 1924, 2183, 2301, 2868, 2886, 3068, 3107, 4366, 4602, 5772, 6214, 6549, 8732, 8843, 9204, 9321, 12428, 13098, 14101, 17686, 18642, 26196, 26529, 28202, 28379, 35372, 37284, 42303, 53058, 56404, 56758, 84606, 85137, 106116, 113516, 114959, 169212, 170274, 183313, 229918, 340548, 344877, 366626, 459836, 521737, 549939, 689754, 733252, 1043474, 1099878, 1379508, 1565211, 2086948, 2199756, 3130422, 6260844, 6782581, 13565162, 20347743, 27130324, 40695486, 81390972]

約数ペア:

[(1, 81390972), (2, 40695486), (3, 27130324), (4, 20347743), (6, 13565162), (12, 6782581), (13, 6260844), (26, 3130422), (37, 2199756), (39, 2086948), (52, 1565211), (59, 1379508), (74, 1099878), (78, 1043474), (111, 733252), (118, 689754), (148, 549939), (156, 521737), (177, 459836), (222, 366626), (236, 344877), (239, 340548), (354, 229918), (444, 183313), (478, 170274), (481, 169212), (708, 114959), (717, 113516), (767, 106116), (956, 85137), (962, 84606), (1434, 56758), (1443, 56404), (1534, 53058), (1924, 42303), (2183, 37284), (2301, 35372), (2868, 28379), (2886, 28202), (3068, 26529), (3107, 26196), (4366, 18642), (4602, 17686), (5772, 14101), (6214, 13098), (6549, 12428), (8732, 9321), (8843, 9204)]