18011999696

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{20929}}^1$

素因数の和:21124

約数の個数: 60

約数和(自身を含む): 37080634500

約数和(自身を除く): 19068634804

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 149, 152, 298, 304, 361, 596, 722, 1192, 1444, 2384, 2831, 2888, 5662, 5776, 11324, 20929, 22648, 41858, 45296, 53789, 83716, 107578, 167432, 215156, 334864, 397651, 430312, 795302, 860624, 1590604, 3118421, 3181208, 6236842, 6362416, 7555369, 12473684, 15110738, 24947368, 30221476, 49894736, 59249999, 60442952, 118499998, 120885904, 236999996, 473999992, 947999984, 1125749981, 2251499962, 4502999924, 9005999848, 18011999696]

約数ペア:

[(1, 18011999696), (2, 9005999848), (4, 4502999924), (8, 2251499962), (16, 1125749981), (19, 947999984), (38, 473999992), (76, 236999996), (149, 120885904), (152, 118499998), (298, 60442952), (304, 59249999), (361, 49894736), (596, 30221476), (722, 24947368), (1192, 15110738), (1444, 12473684), (2384, 7555369), (2831, 6362416), (2888, 6236842), (5662, 3181208), (5776, 3118421), (11324, 1590604), (20929, 860624), (22648, 795302), (41858, 430312), (45296, 397651), (53789, 334864), (83716, 215156), (107578, 167432)]