20452950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:219

約数の個数: 144

約数和(自身を含む): 64686336

約数和(自身を除く): 44233386

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 43, 45, 50, 63, 70, 75, 86, 90, 105, 126, 129, 150, 151, 175, 210, 215, 225, 258, 301, 302, 315, 350, 387, 430, 450, 453, 525, 602, 630, 645, 755, 774, 903, 906, 1050, 1057, 1075, 1290, 1359, 1505, 1510, 1575, 1806, 1935, 2114, 2150, 2265, 2709, 2718, 3010, 3150, 3171, 3225, 3775, 3870, 4515, 4530, 5285, 5418, 6342, 6450, 6493, 6795, 7525, 7550, 9030, 9513, 9675, 10570, 11325, 12986, 13545, 13590, 15050, 15855, 19026, 19350, 19479, 22575, 22650, 26425, 27090, 31710, 32465, 33975, 38958, 45150, 45451, 47565, 52850, 58437, 64930, 67725, 67950, 79275, 90902, 95130, 97395, 116874, 135450, 136353, 158550, 162325, 194790, 227255, 237825, 272706, 292185, 324650, 409059, 454510, 475650, 486975, 584370, 681765, 818118, 973950, 1136275, 1363530, 1460925, 2045295, 2272550, 2921850, 3408825, 4090590, 6817650, 10226475, 20452950]

約数ペア:

[(1, 20452950), (2, 10226475), (3, 6817650), (5, 4090590), (6, 3408825), (7, 2921850), (9, 2272550), (10, 2045295), (14, 1460925), (15, 1363530), (18, 1136275), (21, 973950), (25, 818118), (30, 681765), (35, 584370), (42, 486975), (43, 475650), (45, 454510), (50, 409059), (63, 324650), (70, 292185), (75, 272706), (86, 237825), (90, 227255), (105, 194790), (126, 162325), (129, 158550), (150, 136353), (151, 135450), (175, 116874), (210, 97395), (215, 95130), (225, 90902), (258, 79275), (301, 67950), (302, 67725), (315, 64930), (350, 58437), (387, 52850), (430, 47565), (450, 45451), (453, 45150), (525, 38958), (602, 33975), (630, 32465), (645, 31710), (755, 27090), (774, 26425), (903, 22650), (906, 22575), (1050, 19479), (1057, 19350), (1075, 19026), (1290, 15855), (1359, 15050), (1505, 13590), (1510, 13545), (1575, 12986), (1806, 11325), (1935, 10570), (2114, 9675), (2150, 9513), (2265, 9030), (2709, 7550), (2718, 7525), (3010, 6795), (3150, 6493), (3171, 6450), (3225, 6342), (3775, 5418), (3870, 5285), (4515, 4530)]