129235280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^2$

素因数の和:157

約数の個数: 90

約数和(自身を含む): 318234654

約数和(自身を除く): 188999374

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 961, 1240, 1271, 1640, 1681, 1922, 2480, 2542, 3280, 3362, 3844, 4805, 5084, 6355, 6724, 7688, 8405, 9610, 10168, 12710, 13448, 15376, 16810, 19220, 20336, 25420, 26896, 33620, 38440, 39401, 50840, 52111, 67240, 76880, 78802, 101680, 104222, 134480, 157604, 197005, 208444, 260555, 315208, 394010, 416888, 521110, 630416, 788020, 833776, 1042220, 1576040, 1615441, 2084440, 3152080, 3230882, 4168880, 6461764, 8077205, 12923528, 16154410, 25847056, 32308820, 64617640, 129235280]

約数ペア:

[(1, 129235280), (2, 64617640), (4, 32308820), (5, 25847056), (8, 16154410), (10, 12923528), (16, 8077205), (20, 6461764), (31, 4168880), (40, 3230882), (41, 3152080), (62, 2084440), (80, 1615441), (82, 1576040), (124, 1042220), (155, 833776), (164, 788020), (205, 630416), (248, 521110), (310, 416888), (328, 394010), (410, 315208), (496, 260555), (620, 208444), (656, 197005), (820, 157604), (961, 134480), (1240, 104222), (1271, 101680), (1640, 78802), (1681, 76880), (1922, 67240), (2480, 52111), (2542, 50840), (3280, 39401), (3362, 38440), (3844, 33620), (4805, 26896), (5084, 25420), (6355, 20336), (6724, 19220), (7688, 16810), (8405, 15376), (9610, 13448), (10168, 12710)]