15338540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^2$

素因数の和:678

約数の個数: 36

約数和(自身を含む): 36924048

約数和(自身を除く): 21585508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 662, 1324, 1655, 2317, 3310, 4634, 6620, 9268, 11585, 23170, 46340, 109561, 219122, 438244, 547805, 766927, 1095610, 1533854, 2191220, 3067708, 3834635, 7669270, 15338540]

約数ペア:

[(1, 15338540), (2, 7669270), (4, 3834635), (5, 3067708), (7, 2191220), (10, 1533854), (14, 1095610), (20, 766927), (28, 547805), (35, 438244), (70, 219122), (140, 109561), (331, 46340), (662, 23170), (1324, 11585), (1655, 9268), (2317, 6620), (3310, 4634)]