18390642740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1\times {\mathrm{40801}}^1$

素因数の和:41568

約数の個数: 48

約数和(自身を含む): 39921982464

約数和(自身を除く): 21531339724

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 727, 1454, 2908, 3635, 7270, 14540, 22537, 40801, 45074, 81602, 90148, 112685, 163204, 204005, 225370, 408010, 450740, 816020, 1264831, 2529662, 5059324, 6324155, 12648310, 25296620, 29662327, 59324654, 118649308, 148311635, 296623270, 593246540, 919532137, 1839064274, 3678128548, 4597660685, 9195321370, 18390642740]

約数ペア:

[(1, 18390642740), (2, 9195321370), (4, 4597660685), (5, 3678128548), (10, 1839064274), (20, 919532137), (31, 593246540), (62, 296623270), (124, 148311635), (155, 118649308), (310, 59324654), (620, 29662327), (727, 25296620), (1454, 12648310), (2908, 6324155), (3635, 5059324), (7270, 2529662), (14540, 1264831), (22537, 816020), (40801, 450740), (45074, 408010), (81602, 225370), (90148, 204005), (112685, 163204)]