79863640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 185613120

約数和(自身を除く): 105749480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 142, 244, 284, 305, 355, 461, 488, 568, 610, 710, 922, 1220, 1420, 1844, 2305, 2440, 2840, 3688, 4331, 4610, 8662, 9220, 17324, 18440, 21655, 28121, 32731, 34648, 43310, 56242, 65462, 86620, 112484, 130924, 140605, 163655, 173240, 224968, 261848, 281210, 327310, 562420, 654620, 1124840, 1309240, 1996591, 3993182, 7986364, 9982955, 15972728, 19965910, 39931820, 79863640]

約数ペア:

[(1, 79863640), (2, 39931820), (4, 19965910), (5, 15972728), (8, 9982955), (10, 7986364), (20, 3993182), (40, 1996591), (61, 1309240), (71, 1124840), (122, 654620), (142, 562420), (244, 327310), (284, 281210), (305, 261848), (355, 224968), (461, 173240), (488, 163655), (568, 140605), (610, 130924), (710, 112484), (922, 86620), (1220, 65462), (1420, 56242), (1844, 43310), (2305, 34648), (2440, 32731), (2840, 28121), (3688, 21655), (4331, 18440), (4610, 17324), (8662, 9220)]