280210920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{212281}}^1$

素因数の和:212306

約数の個数: 64

約数和(自身を含む): 917058240

約数和(自身を除く): 636847320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 212281, 424562, 636843, 849124, 1061405, 1273686, 1698248, 2122810, 2335091, 2547372, 3184215, 4245620, 4670182, 5094744, 6368430, 7005273, 8491240, 9340364, 11675455, 12736860, 14010546, 18680728, 23350910, 25473720, 28021092, 35026365, 46701820, 56042184, 70052730, 93403640, 140105460, 280210920]

約数ペア:

[(1, 280210920), (2, 140105460), (3, 93403640), (4, 70052730), (5, 56042184), (6, 46701820), (8, 35026365), (10, 28021092), (11, 25473720), (12, 23350910), (15, 18680728), (20, 14010546), (22, 12736860), (24, 11675455), (30, 9340364), (33, 8491240), (40, 7005273), (44, 6368430), (55, 5094744), (60, 4670182), (66, 4245620), (88, 3184215), (110, 2547372), (120, 2335091), (132, 2122810), (165, 1698248), (220, 1273686), (264, 1061405), (330, 849124), (440, 636843), (660, 424562), (1320, 212281)]