396909740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{7193}}^1$

素因数の和:7322

約数の個数: 48

約数和(自身を含む): 870186240

約数和(自身を除く): 473276500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 445, 620, 890, 1780, 2759, 5518, 7193, 11036, 13795, 14386, 27590, 28772, 35965, 55180, 71930, 143860, 222983, 445966, 640177, 891932, 1114915, 1280354, 2229830, 2560708, 3200885, 4459660, 6401770, 12803540, 19845487, 39690974, 79381948, 99227435, 198454870, 396909740]

約数ペア:

[(1, 396909740), (2, 198454870), (4, 99227435), (5, 79381948), (10, 39690974), (20, 19845487), (31, 12803540), (62, 6401770), (89, 4459660), (124, 3200885), (155, 2560708), (178, 2229830), (310, 1280354), (356, 1114915), (445, 891932), (620, 640177), (890, 445966), (1780, 222983), (2759, 143860), (5518, 71930), (7193, 55180), (11036, 35965), (13795, 28772), (14386, 27590)]