220190175

素因数分解:

$3^2\times 5^2\times {\mathrm{61}}^2\times {\mathrm{263}}^1$

素因数の和:401

約数の個数: 54

約数和(自身を含む): 402480936

約数和(自身を除く): 182290761

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 183, 225, 263, 305, 549, 789, 915, 1315, 1525, 2367, 2745, 3721, 3945, 4575, 6575, 11163, 11835, 13725, 16043, 18605, 19725, 33489, 48129, 55815, 59175, 80215, 93025, 144387, 167445, 240645, 279075, 401075, 721935, 837225, 978623, 1203225, 2935869, 3609675, 4893115, 8807607, 14679345, 24465575, 44038035, 73396725, 220190175]

約数ペア:

[(1, 220190175), (3, 73396725), (5, 44038035), (9, 24465575), (15, 14679345), (25, 8807607), (45, 4893115), (61, 3609675), (75, 2935869), (183, 1203225), (225, 978623), (263, 837225), (305, 721935), (549, 401075), (789, 279075), (915, 240645), (1315, 167445), (1525, 144387), (2367, 93025), (2745, 80215), (3721, 59175), (3945, 55815), (4575, 48129), (6575, 33489), (11163, 19725), (11835, 18605), (13725, 16043)]