81104920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8209}}^1$

素因数の和:8252

約数の個数: 64

約数和(自身を含む): 206892000

約数和(自身を除く): 125787080

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 8209, 9880, 16418, 32836, 41045, 65672, 82090, 106717, 155971, 164180, 213434, 311942, 328360, 426868, 533585, 623884, 779855, 853736, 1067170, 1247768, 1559710, 2027623, 2134340, 3119420, 4055246, 4268680, 6238840, 8110492, 10138115, 16220984, 20276230, 40552460, 81104920]

約数ペア:

[(1, 81104920), (2, 40552460), (4, 20276230), (5, 16220984), (8, 10138115), (10, 8110492), (13, 6238840), (19, 4268680), (20, 4055246), (26, 3119420), (38, 2134340), (40, 2027623), (52, 1559710), (65, 1247768), (76, 1067170), (95, 853736), (104, 779855), (130, 623884), (152, 533585), (190, 426868), (247, 328360), (260, 311942), (380, 213434), (494, 164180), (520, 155971), (760, 106717), (988, 82090), (1235, 65672), (1976, 41045), (2470, 32836), (4940, 16418), (8209, 9880)]