81719760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17921}}^1$

素因数の和:17956

約数の個数: 80

約数和(自身を含む): 266679360

約数和(自身を除く): 184959600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17921, 35842, 53763, 71684, 89605, 107526, 143368, 179210, 215052, 268815, 286736, 340499, 358420, 430104, 537630, 680998, 716840, 860208, 1021497, 1075260, 1361996, 1433680, 1702495, 2042994, 2150520, 2723992, 3404990, 4085988, 4301040, 5107485, 5447984, 6809980, 8171976, 10214970, 13619960, 16343952, 20429940, 27239920, 40859880, 81719760]

約数ペア:

[(1, 81719760), (2, 40859880), (3, 27239920), (4, 20429940), (5, 16343952), (6, 13619960), (8, 10214970), (10, 8171976), (12, 6809980), (15, 5447984), (16, 5107485), (19, 4301040), (20, 4085988), (24, 3404990), (30, 2723992), (38, 2150520), (40, 2042994), (48, 1702495), (57, 1433680), (60, 1361996), (76, 1075260), (80, 1021497), (95, 860208), (114, 716840), (120, 680998), (152, 537630), (190, 430104), (228, 358420), (240, 340499), (285, 286736), (304, 268815), (380, 215052), (456, 179210), (570, 143368), (760, 107526), (912, 89605), (1140, 71684), (1520, 53763), (2280, 35842), (4560, 17921)]