231721568

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1543}}^1$

素因数の和:1604

約数の個数: 72

約数和(自身を含む): 518848848

約数和(自身を除く): 287127280

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 361, 416, 494, 608, 722, 988, 1444, 1543, 1976, 2888, 3086, 3952, 4693, 5776, 6172, 7904, 9386, 11552, 12344, 18772, 20059, 24688, 29317, 37544, 40118, 49376, 58634, 75088, 80236, 117268, 150176, 160472, 234536, 320944, 381121, 469072, 557023, 641888, 762242, 938144, 1114046, 1524484, 2228092, 3048968, 4456184, 6097936, 7241299, 8912368, 12195872, 14482598, 17824736, 28965196, 57930392, 115860784, 231721568]

約数ペア:

[(1, 231721568), (2, 115860784), (4, 57930392), (8, 28965196), (13, 17824736), (16, 14482598), (19, 12195872), (26, 8912368), (32, 7241299), (38, 6097936), (52, 4456184), (76, 3048968), (104, 2228092), (152, 1524484), (208, 1114046), (247, 938144), (304, 762242), (361, 641888), (416, 557023), (494, 469072), (608, 381121), (722, 320944), (988, 234536), (1444, 160472), (1543, 150176), (1976, 117268), (2888, 80236), (3086, 75088), (3952, 58634), (4693, 49376), (5776, 40118), (6172, 37544), (7904, 29317), (9386, 24688), (11552, 20059), (12344, 18772)]