61338640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1621}}^1$

素因数の和:1688

約数の個数: 80

約数和(自身を含む): 159293376

約数和(自身を除く): 97954736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1621, 1720, 1892, 2365, 3242, 3440, 3784, 4730, 6484, 7568, 8105, 9460, 12968, 16210, 17831, 18920, 25936, 32420, 35662, 37840, 64840, 69703, 71324, 89155, 129680, 139406, 142648, 178310, 278812, 285296, 348515, 356620, 557624, 697030, 713240, 766733, 1115248, 1394060, 1426480, 1533466, 2788120, 3066932, 3833665, 5576240, 6133864, 7667330, 12267728, 15334660, 30669320, 61338640]

約数ペア:

[(1, 61338640), (2, 30669320), (4, 15334660), (5, 12267728), (8, 7667330), (10, 6133864), (11, 5576240), (16, 3833665), (20, 3066932), (22, 2788120), (40, 1533466), (43, 1426480), (44, 1394060), (55, 1115248), (80, 766733), (86, 713240), (88, 697030), (110, 557624), (172, 356620), (176, 348515), (215, 285296), (220, 278812), (344, 178310), (430, 142648), (440, 139406), (473, 129680), (688, 89155), (860, 71324), (880, 69703), (946, 64840), (1621, 37840), (1720, 35662), (1892, 32420), (2365, 25936), (3242, 18920), (3440, 17831), (3784, 16210), (4730, 12968), (6484, 9460), (7568, 8105)]