15221640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{18121}}^1$

素因数の和:18142

約数の個数: 64

約数和(自身を含む): 52191360

約数和(自身を除く): 36969720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 18121, 36242, 54363, 72484, 90605, 108726, 126847, 144968, 181210, 217452, 253694, 271815, 362420, 380541, 434904, 507388, 543630, 634235, 724840, 761082, 1014776, 1087260, 1268470, 1522164, 1902705, 2174520, 2536940, 3044328, 3805410, 5073880, 7610820, 15221640]

約数ペア:

[(1, 15221640), (2, 7610820), (3, 5073880), (4, 3805410), (5, 3044328), (6, 2536940), (7, 2174520), (8, 1902705), (10, 1522164), (12, 1268470), (14, 1087260), (15, 1014776), (20, 761082), (21, 724840), (24, 634235), (28, 543630), (30, 507388), (35, 434904), (40, 380541), (42, 362420), (56, 271815), (60, 253694), (70, 217452), (84, 181210), (105, 144968), (120, 126847), (140, 108726), (168, 90605), (210, 72484), (280, 54363), (420, 36242), (840, 18121)]