31987485

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 57877248

約数和(自身を除く): 25889763

約数列:

[1, 3, 5, 9, 15, 43, 45, 61, 129, 183, 215, 271, 305, 387, 549, 645, 813, 915, 1355, 1935, 2439, 2623, 2745, 4065, 7869, 11653, 12195, 13115, 16531, 23607, 34959, 39345, 49593, 58265, 82655, 104877, 118035, 148779, 174795, 247965, 524385, 710833, 743895, 2132499, 3554165, 6397497, 10662495, 31987485]

約数ペア:

[(1, 31987485), (3, 10662495), (5, 6397497), (9, 3554165), (15, 2132499), (43, 743895), (45, 710833), (61, 524385), (129, 247965), (183, 174795), (215, 148779), (271, 118035), (305, 104877), (387, 82655), (549, 58265), (645, 49593), (813, 39345), (915, 34959), (1355, 23607), (1935, 16531), (2439, 13115), (2623, 12195), (2745, 11653), (4065, 7869)]