20175558

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 44350416

約数和(自身を除く): 24174858

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 169, 197, 202, 303, 338, 394, 507, 591, 606, 1014, 1182, 1313, 2561, 2626, 3939, 5122, 7683, 7878, 15366, 17069, 19897, 33293, 34138, 39794, 51207, 59691, 66586, 99879, 102414, 119382, 199758, 258661, 517322, 775983, 1551966, 3362593, 6725186, 10087779, 20175558]

約数ペア:

[(1, 20175558), (2, 10087779), (3, 6725186), (6, 3362593), (13, 1551966), (26, 775983), (39, 517322), (78, 258661), (101, 199758), (169, 119382), (197, 102414), (202, 99879), (303, 66586), (338, 59691), (394, 51207), (507, 39794), (591, 34138), (606, 33293), (1014, 19897), (1182, 17069), (1313, 15366), (2561, 7878), (2626, 7683), (3939, 5122)]