40128415

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 53512704

約数和(自身を除く): 13384289

約数列:

[1, 5, 17, 31, 85, 97, 155, 157, 485, 527, 785, 1649, 2635, 2669, 3007, 4867, 8245, 13345, 15035, 15229, 24335, 51119, 76145, 82739, 255595, 258893, 413695, 472099, 1294465, 2360495, 8025683, 40128415]

約数ペア:

[(1, 40128415), (5, 8025683), (17, 2360495), (31, 1294465), (85, 472099), (97, 413695), (155, 258893), (157, 255595), (485, 82739), (527, 76145), (785, 51119), (1649, 24335), (2635, 15229), (2669, 15035), (3007, 13345), (4867, 8245)]