149759920

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1889}}^1$

素因数の和:2893

約数の個数: 40

約数和(自身を含む): 348727680

約数和(自身を除く): 198967760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1889, 1982, 3778, 3964, 4955, 7556, 7928, 9445, 9910, 15112, 15856, 18890, 19820, 30224, 37780, 39640, 75560, 79280, 151120, 1871999, 3743998, 7487996, 9359995, 14975992, 18719990, 29951984, 37439980, 74879960, 149759920]

約数ペア:

[(1, 149759920), (2, 74879960), (4, 37439980), (5, 29951984), (8, 18719990), (10, 14975992), (16, 9359995), (20, 7487996), (40, 3743998), (80, 1871999), (991, 151120), (1889, 79280), (1982, 75560), (3778, 39640), (3964, 37780), (4955, 30224), (7556, 19820), (7928, 18890), (9445, 15856), (9910, 15112)]