19459900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{11447}}^1$

素因数の和:11478

約数の個数: 36

約数和(自身を含む): 44715888

約数和(自身を除く): 25255988

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 11447, 22894, 45788, 57235, 114470, 194599, 228940, 286175, 389198, 572350, 778396, 972995, 1144700, 1945990, 3891980, 4864975, 9729950, 19459900]

約数ペア:

[(1, 19459900), (2, 9729950), (4, 4864975), (5, 3891980), (10, 1945990), (17, 1144700), (20, 972995), (25, 778396), (34, 572350), (50, 389198), (68, 286175), (85, 228940), (100, 194599), (170, 114470), (340, 57235), (425, 45788), (850, 22894), (1700, 11447)]