81393620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3109}}^1$

素因数の和:3153

約数の個数: 96

約数和(自身を含む): 225711360

約数和(自身を除く): 144317740

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 140, 154, 170, 187, 220, 238, 308, 340, 374, 385, 476, 595, 748, 770, 935, 1190, 1309, 1540, 1870, 2380, 2618, 3109, 3740, 5236, 6218, 6545, 12436, 13090, 15545, 21763, 26180, 31090, 34199, 43526, 52853, 62180, 68398, 87052, 105706, 108815, 136796, 170995, 211412, 217630, 239393, 264265, 341990, 369971, 435260, 478786, 528530, 581383, 683980, 739942, 957572, 1057060, 1162766, 1196965, 1479884, 1849855, 2325532, 2393930, 2906915, 3699710, 4069681, 4787860, 5813830, 7399420, 8139362, 11627660, 16278724, 20348405, 40696810, 81393620]

約数ペア:

[(1, 81393620), (2, 40696810), (4, 20348405), (5, 16278724), (7, 11627660), (10, 8139362), (11, 7399420), (14, 5813830), (17, 4787860), (20, 4069681), (22, 3699710), (28, 2906915), (34, 2393930), (35, 2325532), (44, 1849855), (55, 1479884), (68, 1196965), (70, 1162766), (77, 1057060), (85, 957572), (110, 739942), (119, 683980), (140, 581383), (154, 528530), (170, 478786), (187, 435260), (220, 369971), (238, 341990), (308, 264265), (340, 239393), (374, 217630), (385, 211412), (476, 170995), (595, 136796), (748, 108815), (770, 105706), (935, 87052), (1190, 68398), (1309, 62180), (1540, 52853), (1870, 43526), (2380, 34199), (2618, 31090), (3109, 26180), (3740, 21763), (5236, 15545), (6218, 13090), (6545, 12436)]