19493050

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:136

約数の個数: 72

約数和(自身を含む): 41113440

約数和(自身を除く): 21620390

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 71, 85, 95, 142, 170, 190, 289, 323, 355, 425, 475, 578, 646, 710, 850, 950, 1207, 1349, 1445, 1615, 1775, 2414, 2698, 2890, 3230, 3550, 5491, 6035, 6745, 7225, 8075, 10982, 12070, 13490, 14450, 16150, 20519, 22933, 27455, 30175, 33725, 41038, 45866, 54910, 60350, 67450, 102595, 114665, 137275, 205190, 229330, 274550, 389861, 512975, 573325, 779722, 1025950, 1146650, 1949305, 3898610, 9746525, 19493050]

約数ペア:

[(1, 19493050), (2, 9746525), (5, 3898610), (10, 1949305), (17, 1146650), (19, 1025950), (25, 779722), (34, 573325), (38, 512975), (50, 389861), (71, 274550), (85, 229330), (95, 205190), (142, 137275), (170, 114665), (190, 102595), (289, 67450), (323, 60350), (355, 54910), (425, 45866), (475, 41038), (578, 33725), (646, 30175), (710, 27455), (850, 22933), (950, 20519), (1207, 16150), (1349, 14450), (1445, 13490), (1615, 12070), (1775, 10982), (2414, 8075), (2698, 7225), (2890, 6745), (3230, 6035), (3550, 5491)]