57189620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^2$

素因数の和:225

約数の個数: 54

約数和(自身を含む): 128192022

約数和(自身を除く): 71002402

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 361, 380, 445, 722, 890, 1444, 1691, 1780, 1805, 3382, 3610, 6764, 7220, 7921, 8455, 15842, 16910, 31684, 32129, 33820, 39605, 64258, 79210, 128516, 150499, 158420, 160645, 300998, 321290, 601996, 642580, 752495, 1504990, 2859481, 3009980, 5718962, 11437924, 14297405, 28594810, 57189620]

約数ペア:

[(1, 57189620), (2, 28594810), (4, 14297405), (5, 11437924), (10, 5718962), (19, 3009980), (20, 2859481), (38, 1504990), (76, 752495), (89, 642580), (95, 601996), (178, 321290), (190, 300998), (356, 160645), (361, 158420), (380, 150499), (445, 128516), (722, 79210), (890, 64258), (1444, 39605), (1691, 33820), (1780, 32129), (1805, 31684), (3382, 16910), (3610, 15842), (6764, 8455), (7220, 7921)]