18798580

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 40824000

約数和(自身を除く): 22025420

約数列:

[1, 2, 4, 5, 10, 20, 59, 89, 118, 178, 179, 236, 295, 356, 358, 445, 590, 716, 890, 895, 1180, 1780, 1790, 3580, 5251, 10502, 10561, 15931, 21004, 21122, 26255, 31862, 42244, 52510, 52805, 63724, 79655, 105020, 105610, 159310, 211220, 318620, 939929, 1879858, 3759716, 4699645, 9399290, 18798580]

約数ペア:

[(1, 18798580), (2, 9399290), (4, 4699645), (5, 3759716), (10, 1879858), (20, 939929), (59, 318620), (89, 211220), (118, 159310), (178, 105610), (179, 105020), (236, 79655), (295, 63724), (356, 52805), (358, 52510), (445, 42244), (590, 31862), (716, 26255), (890, 21122), (895, 21004), (1180, 15931), (1780, 10561), (1790, 10502), (3580, 5251)]