19449170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 39077640

約数和(自身を除く): 19628470

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 89, 130, 178, 205, 410, 445, 533, 890, 1066, 1157, 1681, 2314, 2665, 3362, 3649, 5330, 5785, 7298, 8405, 11570, 16810, 18245, 21853, 36490, 43706, 47437, 94874, 109265, 149609, 218530, 237185, 299218, 474370, 748045, 1496090, 1944917, 3889834, 9724585, 19449170]

約数ペア:

[(1, 19449170), (2, 9724585), (5, 3889834), (10, 1944917), (13, 1496090), (26, 748045), (41, 474370), (65, 299218), (82, 237185), (89, 218530), (130, 149609), (178, 109265), (205, 94874), (410, 47437), (445, 43706), (533, 36490), (890, 21853), (1066, 18245), (1157, 16810), (1681, 11570), (2314, 8405), (2665, 7298), (3362, 5785), (3649, 5330)]