15787900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 37403856

約数和(自身を除く): 21615956

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 37, 50, 68, 74, 85, 100, 148, 170, 185, 251, 340, 370, 425, 502, 629, 740, 850, 925, 1004, 1255, 1258, 1700, 1850, 2510, 2516, 3145, 3700, 4267, 5020, 6275, 6290, 8534, 9287, 12550, 12580, 15725, 17068, 18574, 21335, 25100, 31450, 37148, 42670, 46435, 62900, 85340, 92870, 106675, 157879, 185740, 213350, 232175, 315758, 426700, 464350, 631516, 789395, 928700, 1578790, 3157580, 3946975, 7893950, 15787900]

約数ペア:

[(1, 15787900), (2, 7893950), (4, 3946975), (5, 3157580), (10, 1578790), (17, 928700), (20, 789395), (25, 631516), (34, 464350), (37, 426700), (50, 315758), (68, 232175), (74, 213350), (85, 185740), (100, 157879), (148, 106675), (170, 92870), (185, 85340), (251, 62900), (340, 46435), (370, 42670), (425, 37148), (502, 31450), (629, 25100), (740, 21335), (850, 18574), (925, 17068), (1004, 15725), (1255, 12580), (1258, 12550), (1700, 9287), (1850, 8534), (2510, 6290), (2516, 6275), (3145, 5020), (3700, 4267)]