30131220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71741}}^1$

素因数の和:71760

約数の個数: 48

約数和(自身を含む): 96421248

約数和(自身を除く): 66290028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 71741, 143482, 215223, 286964, 358705, 430446, 502187, 717410, 860892, 1004374, 1076115, 1434820, 1506561, 2008748, 2152230, 2510935, 3013122, 4304460, 5021870, 6026244, 7532805, 10043740, 15065610, 30131220]

約数ペア:

[(1, 30131220), (2, 15065610), (3, 10043740), (4, 7532805), (5, 6026244), (6, 5021870), (7, 4304460), (10, 3013122), (12, 2510935), (14, 2152230), (15, 2008748), (20, 1506561), (21, 1434820), (28, 1076115), (30, 1004374), (35, 860892), (42, 717410), (60, 502187), (70, 430446), (84, 358705), (105, 286964), (140, 215223), (210, 143482), (420, 71741)]