20172899140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{302261}}^1$

素因数の和:302388

約数の個数: 48

約数和(自身を含む): 43873933824

約数和(自身を除く): 23701034684

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 235, 284, 355, 470, 710, 940, 1420, 3337, 6674, 13348, 16685, 33370, 66740, 302261, 604522, 1209044, 1511305, 3022610, 6045220, 14206267, 21460531, 28412534, 42921062, 56825068, 71031335, 85842124, 107302655, 142062670, 214605310, 284125340, 429210620, 1008644957, 2017289914, 4034579828, 5043224785, 10086449570, 20172899140]

約数ペア:

[(1, 20172899140), (2, 10086449570), (4, 5043224785), (5, 4034579828), (10, 2017289914), (20, 1008644957), (47, 429210620), (71, 284125340), (94, 214605310), (142, 142062670), (188, 107302655), (235, 85842124), (284, 71031335), (355, 56825068), (470, 42921062), (710, 28412534), (940, 21460531), (1420, 14206267), (3337, 6045220), (6674, 3022610), (13348, 1511305), (16685, 1209044), (33370, 604522), (66740, 302261)]