81977550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{59}}^2\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 72

約数和(自身を含む): 208125816

約数和(自身を除く): 126148266

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 59, 75, 118, 150, 157, 177, 295, 314, 354, 471, 590, 785, 885, 942, 1475, 1570, 1770, 2355, 2950, 3481, 3925, 4425, 4710, 6962, 7850, 8850, 9263, 10443, 11775, 17405, 18526, 20886, 23550, 27789, 34810, 46315, 52215, 55578, 87025, 92630, 104430, 138945, 174050, 231575, 261075, 277890, 463150, 522150, 546517, 694725, 1093034, 1389450, 1639551, 2732585, 3279102, 5465170, 8197755, 13662925, 16395510, 27325850, 40988775, 81977550]

約数ペア:

[(1, 81977550), (2, 40988775), (3, 27325850), (5, 16395510), (6, 13662925), (10, 8197755), (15, 5465170), (25, 3279102), (30, 2732585), (50, 1639551), (59, 1389450), (75, 1093034), (118, 694725), (150, 546517), (157, 522150), (177, 463150), (295, 277890), (314, 261075), (354, 231575), (471, 174050), (590, 138945), (785, 104430), (885, 92630), (942, 87025), (1475, 55578), (1570, 52215), (1770, 46315), (2355, 34810), (2950, 27789), (3481, 23550), (3925, 20886), (4425, 18526), (4710, 17405), (6962, 11775), (7850, 10443), (8850, 9263)]