66758889220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{54720401}}^1$

素因数の和:54720471

約数の個数: 24

約数和(自身を含む): 142491926808

約数和(自身を除く): 75733037588

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 54720401, 109440802, 218881604, 273602005, 547204010, 1094408020, 3337944461, 6675888922, 13351777844, 16689722305, 33379444610, 66758889220]

約数ペア:

[(1, 66758889220), (2, 33379444610), (4, 16689722305), (5, 13351777844), (10, 6675888922), (20, 3337944461), (61, 1094408020), (122, 547204010), (244, 273602005), (305, 218881604), (610, 109440802), (1220, 54720401)]