18944220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4447}}^1$

素因数の和:4530

約数の個数: 48

約数和(自身を含む): 53803008

約数和(自身を除く): 34858788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4447, 8894, 13341, 17788, 22235, 26682, 44470, 53364, 66705, 88940, 133410, 266820, 315737, 631474, 947211, 1262948, 1578685, 1894422, 3157370, 3788844, 4736055, 6314740, 9472110, 18944220]

約数ペア:

[(1, 18944220), (2, 9472110), (3, 6314740), (4, 4736055), (5, 3788844), (6, 3157370), (10, 1894422), (12, 1578685), (15, 1262948), (20, 947211), (30, 631474), (60, 315737), (71, 266820), (142, 133410), (213, 88940), (284, 66705), (355, 53364), (426, 44470), (710, 26682), (852, 22235), (1065, 17788), (1420, 13341), (2130, 8894), (4260, 4447)]