90153974

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 153070560

約数和(自身を除く): 62916586

約数列:

[1, 2, 19, 23, 38, 46, 61, 89, 122, 178, 361, 437, 722, 874, 1159, 1403, 1691, 2047, 2318, 2806, 3382, 4094, 5429, 8303, 10858, 16606, 22021, 26657, 32129, 38893, 44042, 53314, 64258, 77786, 103151, 124867, 206302, 249734, 506483, 738967, 1012966, 1477934, 1959869, 2372473, 3919738, 4744946, 45076987, 90153974]

約数ペア:

[(1, 90153974), (2, 45076987), (19, 4744946), (23, 3919738), (38, 2372473), (46, 1959869), (61, 1477934), (89, 1012966), (122, 738967), (178, 506483), (361, 249734), (437, 206302), (722, 124867), (874, 103151), (1159, 77786), (1403, 64258), (1691, 53314), (2047, 44042), (2318, 38893), (2806, 32129), (3382, 26657), (4094, 22021), (5429, 16606), (8303, 10858)]