64639965

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 114789312

約数和(自身を除く): 50149347

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 169, 195, 215, 507, 559, 593, 645, 845, 1677, 1779, 2535, 2795, 2965, 7267, 7709, 8385, 8895, 21801, 23127, 25499, 36335, 38545, 76497, 100217, 109005, 115635, 127495, 300651, 331487, 382485, 501085, 994461, 1503255, 1657435, 4309331, 4972305, 12927993, 21546655, 64639965]

約数ペア:

[(1, 64639965), (3, 21546655), (5, 12927993), (13, 4972305), (15, 4309331), (39, 1657435), (43, 1503255), (65, 994461), (129, 501085), (169, 382485), (195, 331487), (215, 300651), (507, 127495), (559, 115635), (593, 109005), (645, 100217), (845, 76497), (1677, 38545), (1779, 36335), (2535, 25499), (2795, 23127), (2965, 21801), (7267, 8895), (7709, 8385)]