157260340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{983}}^1$

素因数の和:1432

約数の個数: 48

約数和(自身を含む): 348808320

約数和(自身を除く): 191547980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 421, 842, 983, 1684, 1966, 2105, 3932, 4210, 4915, 7999, 8420, 9830, 15998, 18677, 19660, 31996, 37354, 39995, 74708, 79990, 93385, 159980, 186770, 373540, 413843, 827686, 1655372, 2069215, 4138430, 7863017, 8276860, 15726034, 31452068, 39315085, 78630170, 157260340]

約数ペア:

[(1, 157260340), (2, 78630170), (4, 39315085), (5, 31452068), (10, 15726034), (19, 8276860), (20, 7863017), (38, 4138430), (76, 2069215), (95, 1655372), (190, 827686), (380, 413843), (421, 373540), (842, 186770), (983, 159980), (1684, 93385), (1966, 79990), (2105, 74708), (3932, 39995), (4210, 37354), (4915, 31996), (7999, 19660), (8420, 18677), (9830, 15998)]