40115920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2269}}^1$

素因数の和:2312

約数の個数: 80

約数和(自身を含む): 106399440

約数和(自身を除く): 66283520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 2210, 2269, 3536, 4420, 4538, 8840, 9076, 11345, 17680, 18152, 22690, 29497, 36304, 38573, 45380, 58994, 77146, 90760, 117988, 147485, 154292, 181520, 192865, 235976, 294970, 308584, 385730, 471952, 501449, 589940, 617168, 771460, 1002898, 1179880, 1542920, 2005796, 2359760, 2507245, 3085840, 4011592, 5014490, 8023184, 10028980, 20057960, 40115920]

約数ペア:

[(1, 40115920), (2, 20057960), (4, 10028980), (5, 8023184), (8, 5014490), (10, 4011592), (13, 3085840), (16, 2507245), (17, 2359760), (20, 2005796), (26, 1542920), (34, 1179880), (40, 1002898), (52, 771460), (65, 617168), (68, 589940), (80, 501449), (85, 471952), (104, 385730), (130, 308584), (136, 294970), (170, 235976), (208, 192865), (221, 181520), (260, 154292), (272, 147485), (340, 117988), (442, 90760), (520, 77146), (680, 58994), (884, 45380), (1040, 38573), (1105, 36304), (1360, 29497), (1768, 22690), (2210, 18152), (2269, 17680), (3536, 11345), (4420, 9076), (4538, 8840)]