128949570

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{401}}^1$

素因数の和:817

約数の個数: 80

約数和(自身を含む): 348471288

約数和(自身を除く): 219521718

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 397, 401, 405, 794, 802, 810, 1191, 1203, 1985, 2005, 2382, 2406, 3573, 3609, 3970, 4010, 5955, 6015, 7146, 7218, 10719, 10827, 11910, 12030, 17865, 18045, 21438, 21654, 32157, 32481, 35730, 36090, 53595, 54135, 64314, 64962, 107190, 108270, 159197, 160785, 162405, 318394, 321570, 324810, 477591, 795985, 955182, 1432773, 1591970, 2387955, 2865546, 4298319, 4775910, 7163865, 8596638, 12894957, 14327730, 21491595, 25789914, 42983190, 64474785, 128949570]

約数ペア:

[(1, 128949570), (2, 64474785), (3, 42983190), (5, 25789914), (6, 21491595), (9, 14327730), (10, 12894957), (15, 8596638), (18, 7163865), (27, 4775910), (30, 4298319), (45, 2865546), (54, 2387955), (81, 1591970), (90, 1432773), (135, 955182), (162, 795985), (270, 477591), (397, 324810), (401, 321570), (405, 318394), (794, 162405), (802, 160785), (810, 159197), (1191, 108270), (1203, 107190), (1985, 64962), (2005, 64314), (2382, 54135), (2406, 53595), (3573, 36090), (3609, 35730), (3970, 32481), (4010, 32157), (5955, 21654), (6015, 21438), (7146, 18045), (7218, 17865), (10719, 12030), (10827, 11910)]