220187960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{289721}}^1$

素因数の和:289751

約数の個数: 32

約数和(自身を含む): 521499600

約数和(自身を除く): 301311640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 289721, 579442, 1158884, 1448605, 2317768, 2897210, 5504699, 5794420, 11009398, 11588840, 22018796, 27523495, 44037592, 55046990, 110093980, 220187960]

約数ペア:

[(1, 220187960), (2, 110093980), (4, 55046990), (5, 44037592), (8, 27523495), (10, 22018796), (19, 11588840), (20, 11009398), (38, 5794420), (40, 5504699), (76, 2897210), (95, 2317768), (152, 1448605), (190, 1158884), (380, 579442), (760, 289721)]