20210940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2389}}^1$

素因数の和:2451

約数の個数: 72

約数和(自身を含む): 62637120

約数和(自身を除く): 42426180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2389, 2820, 4230, 4778, 7167, 8460, 9556, 11945, 14334, 21501, 23890, 28668, 35835, 43002, 47780, 71670, 86004, 107505, 112283, 143340, 215010, 224566, 336849, 430020, 449132, 561415, 673698, 1010547, 1122830, 1347396, 1684245, 2021094, 2245660, 3368490, 4042188, 5052735, 6736980, 10105470, 20210940]

約数ペア:

[(1, 20210940), (2, 10105470), (3, 6736980), (4, 5052735), (5, 4042188), (6, 3368490), (9, 2245660), (10, 2021094), (12, 1684245), (15, 1347396), (18, 1122830), (20, 1010547), (30, 673698), (36, 561415), (45, 449132), (47, 430020), (60, 336849), (90, 224566), (94, 215010), (141, 143340), (180, 112283), (188, 107505), (235, 86004), (282, 71670), (423, 47780), (470, 43002), (564, 35835), (705, 28668), (846, 23890), (940, 21501), (1410, 14334), (1692, 11945), (2115, 9556), (2389, 8460), (2820, 7167), (4230, 4778)]