156935613980

素因数分解:

$2^2\times 5^1\times {\mathrm{19891}}^1\times {\mathrm{394489}}^1$

素因数の和:414389

約数の個数: 24

約数和(自身を含む): 329582193360

約数和(自身を除く): 172646579380

約数列:

[1, 2, 4, 5, 10, 20, 19891, 39782, 79564, 99455, 198910, 394489, 397820, 788978, 1577956, 1972445, 3944890, 7889780, 7846780699, 15693561398, 31387122796, 39233903495, 78467806990, 156935613980]

約数ペア:

[(1, 156935613980), (2, 78467806990), (4, 39233903495), (5, 31387122796), (10, 15693561398), (20, 7846780699), (19891, 7889780), (39782, 3944890), (79564, 1972445), (99455, 1577956), (198910, 788978), (394489, 397820)]