19765830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1543}}^1$

素因数の和:1621

約数の個数: 64

約数和(自身を含む): 55139328

約数和(自身を除く): 35373498

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1543, 1830, 2135, 2562, 3086, 4270, 4629, 6405, 7715, 9258, 10801, 12810, 15430, 21602, 23145, 32403, 46290, 54005, 64806, 94123, 108010, 162015, 188246, 282369, 324030, 470615, 564738, 658861, 941230, 1317722, 1411845, 1976583, 2823690, 3294305, 3953166, 6588610, 9882915, 19765830]

約数ペア:

[(1, 19765830), (2, 9882915), (3, 6588610), (5, 3953166), (6, 3294305), (7, 2823690), (10, 1976583), (14, 1411845), (15, 1317722), (21, 941230), (30, 658861), (35, 564738), (42, 470615), (61, 324030), (70, 282369), (105, 188246), (122, 162015), (183, 108010), (210, 94123), (305, 64806), (366, 54005), (427, 46290), (610, 32403), (854, 23145), (915, 21602), (1281, 15430), (1543, 12810), (1830, 10801), (2135, 9258), (2562, 7715), (3086, 6405), (4270, 4629)]