18233890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:618

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 15980510

約数列:

[1, 2, 5, 10, 31, 62, 131, 155, 262, 310, 449, 655, 898, 1310, 2245, 4061, 4490, 8122, 13919, 20305, 27838, 40610, 58819, 69595, 117638, 139190, 294095, 588190, 1823389, 3646778, 9116945, 18233890]

約数ペア:

[(1, 18233890), (2, 9116945), (5, 3646778), (10, 1823389), (31, 588190), (62, 294095), (131, 139190), (155, 117638), (262, 69595), (310, 58819), (449, 40610), (655, 27838), (898, 20305), (1310, 13919), (2245, 8122), (4061, 4490)]