81690690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^3\times {\mathrm{397}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 207469440

約数和(自身を除く): 125778750

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 361, 397, 570, 722, 794, 1083, 1191, 1805, 1985, 2166, 2382, 3610, 3970, 5415, 5955, 6859, 7543, 10830, 11910, 13718, 15086, 20577, 22629, 34295, 37715, 41154, 45258, 68590, 75430, 102885, 113145, 143317, 205770, 226290, 286634, 429951, 716585, 859902, 1433170, 2149755, 2723023, 4299510, 5446046, 8169069, 13615115, 16338138, 27230230, 40845345, 81690690]

約数ペア:

[(1, 81690690), (2, 40845345), (3, 27230230), (5, 16338138), (6, 13615115), (10, 8169069), (15, 5446046), (19, 4299510), (30, 2723023), (38, 2149755), (57, 1433170), (95, 859902), (114, 716585), (190, 429951), (285, 286634), (361, 226290), (397, 205770), (570, 143317), (722, 113145), (794, 102885), (1083, 75430), (1191, 68590), (1805, 45258), (1985, 41154), (2166, 37715), (2382, 34295), (3610, 22629), (3970, 20577), (5415, 15086), (5955, 13718), (6859, 11910), (7543, 10830)]