7444840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 18345600

約数和(自身を除く): 10900760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 103, 104, 130, 139, 206, 260, 278, 412, 515, 520, 556, 695, 824, 1030, 1112, 1339, 1390, 1807, 2060, 2678, 2780, 3614, 4120, 5356, 5560, 6695, 7228, 9035, 10712, 13390, 14317, 14456, 18070, 26780, 28634, 36140, 53560, 57268, 71585, 72280, 114536, 143170, 186121, 286340, 372242, 572680, 744484, 930605, 1488968, 1861210, 3722420, 7444840]

約数ペア:

[(1, 7444840), (2, 3722420), (4, 1861210), (5, 1488968), (8, 930605), (10, 744484), (13, 572680), (20, 372242), (26, 286340), (40, 186121), (52, 143170), (65, 114536), (103, 72280), (104, 71585), (130, 57268), (139, 53560), (206, 36140), (260, 28634), (278, 26780), (412, 18070), (515, 14456), (520, 14317), (556, 13390), (695, 10712), (824, 9035), (1030, 7228), (1112, 6695), (1339, 5560), (1390, 5356), (1807, 4120), (2060, 3614), (2678, 2780)]