208037925

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:567

約数の個数: 72

約数和(自身を含む): 398418696

約数和(自身を除く): 190380771

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 137, 153, 225, 255, 397, 411, 425, 685, 765, 1191, 1233, 1275, 1985, 2055, 2329, 3425, 3573, 3825, 5955, 6165, 6749, 6987, 9925, 10275, 11645, 17865, 20247, 20961, 29775, 30825, 33745, 34935, 54389, 58225, 60741, 89325, 101235, 104805, 163167, 168725, 174675, 271945, 303705, 489501, 506175, 524025, 815835, 924613, 1359725, 1518525, 2447505, 2773839, 4079175, 4623065, 8321517, 12237525, 13869195, 23115325, 41607585, 69345975, 208037925]

約数ペア:

[(1, 208037925), (3, 69345975), (5, 41607585), (9, 23115325), (15, 13869195), (17, 12237525), (25, 8321517), (45, 4623065), (51, 4079175), (75, 2773839), (85, 2447505), (137, 1518525), (153, 1359725), (225, 924613), (255, 815835), (397, 524025), (411, 506175), (425, 489501), (685, 303705), (765, 271945), (1191, 174675), (1233, 168725), (1275, 163167), (1985, 104805), (2055, 101235), (2329, 89325), (3425, 60741), (3573, 58225), (3825, 54389), (5955, 34935), (6165, 33745), (6749, 30825), (6987, 29775), (9925, 20961), (10275, 20247), (11645, 17865)]