123643640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4397}}^1$

素因数の和:4464

約数の個数: 64

約数和(自身を含む): 300823200

約数和(自身を除く): 177179560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1406, 1480, 2812, 3515, 4397, 5624, 7030, 8794, 14060, 17588, 21985, 28120, 35176, 43970, 83543, 87940, 162689, 167086, 175880, 325378, 334172, 417715, 650756, 668344, 813445, 835430, 1301512, 1626890, 1670860, 3091091, 3253780, 3341720, 6182182, 6507560, 12364364, 15455455, 24728728, 30910910, 61821820, 123643640]

約数ペア:

[(1, 123643640), (2, 61821820), (4, 30910910), (5, 24728728), (8, 15455455), (10, 12364364), (19, 6507560), (20, 6182182), (37, 3341720), (38, 3253780), (40, 3091091), (74, 1670860), (76, 1626890), (95, 1301512), (148, 835430), (152, 813445), (185, 668344), (190, 650756), (296, 417715), (370, 334172), (380, 325378), (703, 175880), (740, 167086), (760, 162689), (1406, 87940), (1480, 83543), (2812, 43970), (3515, 35176), (4397, 28120), (5624, 21985), (7030, 17588), (8794, 14060)]