159612920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2039}}^1$

素因数の和:2172

約数の個数: 64

約数和(自身を含む): 381888000

約数和(自身を除く): 222275080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 760, 824, 1030, 1957, 2039, 2060, 3914, 4078, 4120, 7828, 8156, 9785, 10195, 15656, 16312, 19570, 20390, 38741, 39140, 40780, 77482, 78280, 81560, 154964, 193705, 210017, 309928, 387410, 420034, 774820, 840068, 1050085, 1549640, 1680136, 2100170, 3990323, 4200340, 7980646, 8400680, 15961292, 19951615, 31922584, 39903230, 79806460, 159612920]

約数ペア:

[(1, 159612920), (2, 79806460), (4, 39903230), (5, 31922584), (8, 19951615), (10, 15961292), (19, 8400680), (20, 7980646), (38, 4200340), (40, 3990323), (76, 2100170), (95, 1680136), (103, 1549640), (152, 1050085), (190, 840068), (206, 774820), (380, 420034), (412, 387410), (515, 309928), (760, 210017), (824, 193705), (1030, 154964), (1957, 81560), (2039, 78280), (2060, 77482), (3914, 40780), (4078, 39140), (4120, 38741), (7828, 20390), (8156, 19570), (9785, 16312), (10195, 15656)]