19158640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3373}}^1$

素因数の和:3457

約数の個数: 40

約数和(自身を含む): 45184608

約数和(自身を除く): 26025968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3373, 5680, 6746, 13492, 16865, 26984, 33730, 53968, 67460, 134920, 239483, 269840, 478966, 957932, 1197415, 1915864, 2394830, 3831728, 4789660, 9579320, 19158640]

約数ペア:

[(1, 19158640), (2, 9579320), (4, 4789660), (5, 3831728), (8, 2394830), (10, 1915864), (16, 1197415), (20, 957932), (40, 478966), (71, 269840), (80, 239483), (142, 134920), (284, 67460), (355, 53968), (568, 33730), (710, 26984), (1136, 16865), (1420, 13492), (2840, 6746), (3373, 5680)]