80267440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1721}}^1$

素因数の和:1798

約数の個数: 80

約数和(自身を含む): 207549216

約数和(自身を除く): 127281776

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 424, 440, 530, 583, 848, 880, 1060, 1166, 1721, 2120, 2332, 2915, 3442, 4240, 4664, 5830, 6884, 8605, 9328, 11660, 13768, 17210, 18931, 23320, 27536, 34420, 37862, 46640, 68840, 75724, 91213, 94655, 137680, 151448, 182426, 189310, 302896, 364852, 378620, 456065, 729704, 757240, 912130, 1003343, 1459408, 1514480, 1824260, 2006686, 3648520, 4013372, 5016715, 7297040, 8026744, 10033430, 16053488, 20066860, 40133720, 80267440]

約数ペア:

[(1, 80267440), (2, 40133720), (4, 20066860), (5, 16053488), (8, 10033430), (10, 8026744), (11, 7297040), (16, 5016715), (20, 4013372), (22, 3648520), (40, 2006686), (44, 1824260), (53, 1514480), (55, 1459408), (80, 1003343), (88, 912130), (106, 757240), (110, 729704), (176, 456065), (212, 378620), (220, 364852), (265, 302896), (424, 189310), (440, 182426), (530, 151448), (583, 137680), (848, 94655), (880, 91213), (1060, 75724), (1166, 68840), (1721, 46640), (2120, 37862), (2332, 34420), (2915, 27536), (3442, 23320), (4240, 18931), (4664, 17210), (5830, 13768), (6884, 11660), (8605, 9328)]