256560200

素因数分解:

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

素因数の和:1107

約数の個数: 96

約数和(自身を含む): 649411560

約数和(自身を除く): 392851360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 101, 104, 130, 200, 202, 260, 325, 404, 505, 520, 650, 808, 977, 1010, 1300, 1313, 1954, 2020, 2525, 2600, 2626, 3908, 4040, 4885, 5050, 5252, 6565, 7816, 9770, 10100, 10504, 12701, 13130, 19540, 20200, 24425, 25402, 26260, 32825, 39080, 48850, 50804, 52520, 63505, 65650, 97700, 98677, 101608, 127010, 131300, 195400, 197354, 254020, 262600, 317525, 394708, 493385, 508040, 635050, 789416, 986770, 1270100, 1282801, 1973540, 2466925, 2540200, 2565602, 3947080, 4933850, 5131204, 6414005, 9867700, 10262408, 12828010, 19735400, 25656020, 32070025, 51312040, 64140050, 128280100, 256560200]

約数ペア:

[(1, 256560200), (2, 128280100), (4, 64140050), (5, 51312040), (8, 32070025), (10, 25656020), (13, 19735400), (20, 12828010), (25, 10262408), (26, 9867700), (40, 6414005), (50, 5131204), (52, 4933850), (65, 3947080), (100, 2565602), (101, 2540200), (104, 2466925), (130, 1973540), (200, 1282801), (202, 1270100), (260, 986770), (325, 789416), (404, 635050), (505, 508040), (520, 493385), (650, 394708), (808, 317525), (977, 262600), (1010, 254020), (1300, 197354), (1313, 195400), (1954, 131300), (2020, 127010), (2525, 101608), (2600, 98677), (2626, 97700), (3908, 65650), (4040, 63505), (4885, 52520), (5050, 50804), (5252, 48850), (6565, 39080), (7816, 32825), (9770, 26260), (10100, 25402), (10504, 24425), (12701, 20200), (13130, 19540)]