19814560

素因数分解:

$2^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2099}}^1$

素因数の和:2173

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 27813440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 80, 118, 160, 236, 295, 472, 590, 944, 1180, 1888, 2099, 2360, 4198, 4720, 8396, 9440, 10495, 16792, 20990, 33584, 41980, 67168, 83960, 123841, 167920, 247682, 335840, 495364, 619205, 990728, 1238410, 1981456, 2476820, 3962912, 4953640, 9907280, 19814560]

約数ペア:

[(1, 19814560), (2, 9907280), (4, 4953640), (5, 3962912), (8, 2476820), (10, 1981456), (16, 1238410), (20, 990728), (32, 619205), (40, 495364), (59, 335840), (80, 247682), (118, 167920), (160, 123841), (236, 83960), (295, 67168), (472, 41980), (590, 33584), (944, 20990), (1180, 16792), (1888, 10495), (2099, 9440), (2360, 8396), (4198, 4720)]