128819640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7723}}^1$

素因数の和:7876

約数の個数: 64

約数和(自身を含む): 389289600

約数和(自身を除く): 260469960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1390, 1668, 2085, 2780, 3336, 4170, 5560, 7723, 8340, 15446, 16680, 23169, 30892, 38615, 46338, 61784, 77230, 92676, 115845, 154460, 185352, 231690, 308920, 463380, 926760, 1073497, 2146994, 3220491, 4293988, 5367485, 6440982, 8587976, 10734970, 12881964, 16102455, 21469940, 25763928, 32204910, 42939880, 64409820, 128819640]

約数ペア:

[(1, 128819640), (2, 64409820), (3, 42939880), (4, 32204910), (5, 25763928), (6, 21469940), (8, 16102455), (10, 12881964), (12, 10734970), (15, 8587976), (20, 6440982), (24, 5367485), (30, 4293988), (40, 3220491), (60, 2146994), (120, 1073497), (139, 926760), (278, 463380), (417, 308920), (556, 231690), (695, 185352), (834, 154460), (1112, 115845), (1390, 92676), (1668, 77230), (2085, 61784), (2780, 46338), (3336, 38615), (4170, 30892), (5560, 23169), (7723, 16680), (8340, 15446)]