66787980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{22717}}^1$

素因数の和:22743

約数の個数: 72

約数和(自身を含む): 217547568

約数和(自身を除く): 150759588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 22717, 45434, 68151, 90868, 113585, 136302, 159019, 227170, 272604, 318038, 340755, 454340, 477057, 636076, 681510, 795095, 954114, 1113133, 1363020, 1590190, 1908228, 2226266, 2385285, 3180380, 3339399, 4452532, 4770570, 5565665, 6678798, 9541140, 11131330, 13357596, 16696995, 22262660, 33393990, 66787980]

約数ペア:

[(1, 66787980), (2, 33393990), (3, 22262660), (4, 16696995), (5, 13357596), (6, 11131330), (7, 9541140), (10, 6678798), (12, 5565665), (14, 4770570), (15, 4452532), (20, 3339399), (21, 3180380), (28, 2385285), (30, 2226266), (35, 1908228), (42, 1590190), (49, 1363020), (60, 1113133), (70, 954114), (84, 795095), (98, 681510), (105, 636076), (140, 477057), (147, 454340), (196, 340755), (210, 318038), (245, 272604), (294, 227170), (420, 159019), (490, 136302), (588, 113585), (735, 90868), (980, 68151), (1470, 45434), (2940, 22717)]