2452840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 6123600

約数和(自身を除く): 3670760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 89, 104, 106, 130, 178, 212, 260, 265, 356, 424, 445, 520, 530, 689, 712, 890, 1060, 1157, 1378, 1780, 2120, 2314, 2756, 3445, 3560, 4628, 4717, 5512, 5785, 6890, 9256, 9434, 11570, 13780, 18868, 23140, 23585, 27560, 37736, 46280, 47170, 61321, 94340, 122642, 188680, 245284, 306605, 490568, 613210, 1226420, 2452840]

約数ペア:

[(1, 2452840), (2, 1226420), (4, 613210), (5, 490568), (8, 306605), (10, 245284), (13, 188680), (20, 122642), (26, 94340), (40, 61321), (52, 47170), (53, 46280), (65, 37736), (89, 27560), (104, 23585), (106, 23140), (130, 18868), (178, 13780), (212, 11570), (260, 9434), (265, 9256), (356, 6890), (424, 5785), (445, 5512), (520, 4717), (530, 4628), (689, 3560), (712, 3445), (890, 2756), (1060, 2314), (1157, 2120), (1378, 1780)]