20189749660

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1171}}^1\times {\mathrm{3607}}^1$

素因数の和:5026

約数の個数: 48

約数和(自身を含む): 42624046080

約数和(自身を除く): 22434296420

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1171, 1195, 2342, 2390, 3607, 4684, 4780, 5855, 7214, 11710, 14428, 18035, 23420, 36070, 72140, 279869, 559738, 862073, 1119476, 1399345, 1724146, 2798690, 3448292, 4223797, 4310365, 5597380, 8447594, 8620730, 16895188, 17241460, 21118985, 42237970, 84475940, 1009487483, 2018974966, 4037949932, 5047437415, 10094874830, 20189749660]

約数ペア:

[(1, 20189749660), (2, 10094874830), (4, 5047437415), (5, 4037949932), (10, 2018974966), (20, 1009487483), (239, 84475940), (478, 42237970), (956, 21118985), (1171, 17241460), (1195, 16895188), (2342, 8620730), (2390, 8447594), (3607, 5597380), (4684, 4310365), (4780, 4223797), (5855, 3448292), (7214, 2798690), (11710, 1724146), (14428, 1399345), (18035, 1119476), (23420, 862073), (36070, 559738), (72140, 279869)]