51312040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{977}}^1$

素因数の和:1102

約数の個数: 64

約数和(自身を含む): 125692560

約数和(自身を除く): 74380520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 505, 520, 808, 977, 1010, 1313, 1954, 2020, 2626, 3908, 4040, 4885, 5252, 6565, 7816, 9770, 10504, 12701, 13130, 19540, 25402, 26260, 39080, 50804, 52520, 63505, 98677, 101608, 127010, 197354, 254020, 394708, 493385, 508040, 789416, 986770, 1282801, 1973540, 2565602, 3947080, 5131204, 6414005, 10262408, 12828010, 25656020, 51312040]

約数ペア:

[(1, 51312040), (2, 25656020), (4, 12828010), (5, 10262408), (8, 6414005), (10, 5131204), (13, 3947080), (20, 2565602), (26, 1973540), (40, 1282801), (52, 986770), (65, 789416), (101, 508040), (104, 493385), (130, 394708), (202, 254020), (260, 197354), (404, 127010), (505, 101608), (520, 98677), (808, 63505), (977, 52520), (1010, 50804), (1313, 39080), (1954, 26260), (2020, 25402), (2626, 19540), (3908, 13130), (4040, 12701), (4885, 10504), (5252, 9770), (6565, 7816)]