20927220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 61641216

約数和(自身を除く): 40713996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 47, 60, 82, 94, 123, 141, 164, 181, 188, 205, 235, 246, 282, 362, 410, 470, 492, 543, 564, 615, 705, 724, 820, 905, 940, 1086, 1230, 1410, 1810, 1927, 2172, 2460, 2715, 2820, 3620, 3854, 5430, 5781, 7421, 7708, 8507, 9635, 10860, 11562, 14842, 17014, 19270, 22263, 23124, 25521, 28905, 29684, 34028, 37105, 38540, 42535, 44526, 51042, 57810, 74210, 85070, 89052, 102084, 111315, 115620, 127605, 148420, 170140, 222630, 255210, 348787, 445260, 510420, 697574, 1046361, 1395148, 1743935, 2092722, 3487870, 4185444, 5231805, 6975740, 10463610, 20927220]

約数ペア:

[(1, 20927220), (2, 10463610), (3, 6975740), (4, 5231805), (5, 4185444), (6, 3487870), (10, 2092722), (12, 1743935), (15, 1395148), (20, 1046361), (30, 697574), (41, 510420), (47, 445260), (60, 348787), (82, 255210), (94, 222630), (123, 170140), (141, 148420), (164, 127605), (181, 115620), (188, 111315), (205, 102084), (235, 89052), (246, 85070), (282, 74210), (362, 57810), (410, 51042), (470, 44526), (492, 42535), (543, 38540), (564, 37105), (615, 34028), (705, 29684), (724, 28905), (820, 25521), (905, 23124), (940, 22263), (1086, 19270), (1230, 17014), (1410, 14842), (1810, 11562), (1927, 10860), (2172, 9635), (2460, 8507), (2715, 7708), (2820, 7421), (3620, 5781), (3854, 5430)]