81860350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^2$

素因数の和:250

約数の個数: 72

約数和(自身を含む): 180566568

約数和(自身を除く): 98706218

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 107, 110, 130, 143, 214, 275, 286, 325, 535, 550, 650, 715, 1070, 1177, 1391, 1430, 2354, 2675, 2782, 3575, 5350, 5885, 6955, 7150, 11449, 11770, 13910, 15301, 22898, 29425, 30602, 34775, 57245, 58850, 69550, 76505, 114490, 125939, 148837, 153010, 251878, 286225, 297674, 382525, 572450, 629695, 744185, 765050, 1259390, 1488370, 1637207, 3148475, 3274414, 3720925, 6296950, 7441850, 8186035, 16372070, 40930175, 81860350]

約数ペア:

[(1, 81860350), (2, 40930175), (5, 16372070), (10, 8186035), (11, 7441850), (13, 6296950), (22, 3720925), (25, 3274414), (26, 3148475), (50, 1637207), (55, 1488370), (65, 1259390), (107, 765050), (110, 744185), (130, 629695), (143, 572450), (214, 382525), (275, 297674), (286, 286225), (325, 251878), (535, 153010), (550, 148837), (650, 125939), (715, 114490), (1070, 76505), (1177, 69550), (1391, 58850), (1430, 57245), (2354, 34775), (2675, 30602), (2782, 29425), (3575, 22898), (5350, 15301), (5885, 13910), (6955, 11770), (7150, 11449)]