19007920

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4483}}^1$

素因数の和:4549

約数の個数: 40

約数和(自身を含む): 45037296

約数和(自身を除く): 26029376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4483, 8966, 17932, 22415, 35864, 44830, 71728, 89660, 179320, 237599, 358640, 475198, 950396, 1187995, 1900792, 2375990, 3801584, 4751980, 9503960, 19007920]

約数ペア:

[(1, 19007920), (2, 9503960), (4, 4751980), (5, 3801584), (8, 2375990), (10, 1900792), (16, 1187995), (20, 950396), (40, 475198), (53, 358640), (80, 237599), (106, 179320), (212, 89660), (265, 71728), (424, 44830), (530, 35864), (848, 22415), (1060, 17932), (2120, 8966), (4240, 4483)]