12985360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8543}}^1$

素因数の和:8575

約数の個数: 40

約数和(自身を含む): 31783680

約数和(自身を除く): 18798320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 8543, 17086, 34172, 42715, 68344, 85430, 136688, 162317, 170860, 324634, 341720, 649268, 683440, 811585, 1298536, 1623170, 2597072, 3246340, 6492680, 12985360]

約数ペア:

[(1, 12985360), (2, 6492680), (4, 3246340), (5, 2597072), (8, 1623170), (10, 1298536), (16, 811585), (19, 683440), (20, 649268), (38, 341720), (40, 324634), (76, 170860), (80, 162317), (95, 136688), (152, 85430), (190, 68344), (304, 42715), (380, 34172), (760, 17086), (1520, 8543)]