18702920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15083}}^1$

素因数の和:15125

約数の個数: 32

約数和(自身を含む): 43441920

約数和(自身を除く): 24739000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15083, 30166, 60332, 75415, 120664, 150830, 301660, 467573, 603320, 935146, 1870292, 2337865, 3740584, 4675730, 9351460, 18702920]

約数ペア:

[(1, 18702920), (2, 9351460), (4, 4675730), (5, 3740584), (8, 2337865), (10, 1870292), (20, 935146), (31, 603320), (40, 467573), (62, 301660), (124, 150830), (155, 120664), (248, 75415), (310, 60332), (620, 30166), (1240, 15083)]