71919640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{10639}}^1$

素因数の和:10676

約数の個数: 48

約数和(自身を含む): 175240800

約数和(自身を除く): 103321160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 10639, 21278, 42556, 53195, 85112, 106390, 138307, 212780, 276614, 425560, 553228, 691535, 1106456, 1383070, 1797991, 2766140, 3595982, 5532280, 7191964, 8989955, 14383928, 17979910, 35959820, 71919640]

約数ペア:

[(1, 71919640), (2, 35959820), (4, 17979910), (5, 14383928), (8, 8989955), (10, 7191964), (13, 5532280), (20, 3595982), (26, 2766140), (40, 1797991), (52, 1383070), (65, 1106456), (104, 691535), (130, 553228), (169, 425560), (260, 276614), (338, 212780), (520, 138307), (676, 106390), (845, 85112), (1352, 53195), (1690, 42556), (3380, 21278), (6760, 10639)]