261343545

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{1163}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 426415104

約数和(自身を除く): 165071559

約数列:

[1, 3, 5, 15, 71, 211, 213, 355, 633, 1055, 1065, 1163, 3165, 3489, 5815, 14981, 17445, 44943, 74905, 82573, 224715, 245393, 247719, 412865, 736179, 1226965, 1238595, 3680895, 17422903, 52268709, 87114515, 261343545]

約数ペア:

[(1, 261343545), (3, 87114515), (5, 52268709), (15, 17422903), (71, 3680895), (211, 1238595), (213, 1226965), (355, 736179), (633, 412865), (1055, 247719), (1065, 245393), (1163, 224715), (3165, 82573), (3489, 74905), (5815, 44943), (14981, 17445)]