31383440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1877}}^1$

素因数の和:1920

約数の個数: 80

約数和(自身を含む): 83833920

約数和(自身を除く): 52450480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 1877, 2090, 3344, 3754, 4180, 7508, 8360, 9385, 15016, 16720, 18770, 20647, 30032, 35663, 37540, 41294, 71326, 75080, 82588, 103235, 142652, 150160, 165176, 178315, 206470, 285304, 330352, 356630, 392293, 412940, 570608, 713260, 784586, 825880, 1426520, 1569172, 1651760, 1961465, 2853040, 3138344, 3922930, 6276688, 7845860, 15691720, 31383440]

約数ペア:

[(1, 31383440), (2, 15691720), (4, 7845860), (5, 6276688), (8, 3922930), (10, 3138344), (11, 2853040), (16, 1961465), (19, 1651760), (20, 1569172), (22, 1426520), (38, 825880), (40, 784586), (44, 713260), (55, 570608), (76, 412940), (80, 392293), (88, 356630), (95, 330352), (110, 285304), (152, 206470), (176, 178315), (190, 165176), (209, 150160), (220, 142652), (304, 103235), (380, 82588), (418, 75080), (440, 71326), (760, 41294), (836, 37540), (880, 35663), (1045, 30032), (1520, 20647), (1672, 18770), (1877, 16720), (2090, 15016), (3344, 9385), (3754, 8360), (4180, 7508)]