20403530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1$

素因数の和:108

約数の個数: 96

約数和(自身を含む): 47779200

約数和(自身を除く): 27375670

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 29, 35, 38, 46, 58, 70, 95, 115, 133, 145, 161, 190, 203, 230, 266, 290, 322, 406, 437, 529, 551, 665, 667, 805, 874, 1015, 1058, 1102, 1330, 1334, 1610, 2030, 2185, 2645, 2755, 3059, 3335, 3703, 3857, 4370, 4669, 5290, 5510, 6118, 6670, 7406, 7714, 9338, 10051, 12673, 15295, 15341, 18515, 19285, 20102, 23345, 25346, 30590, 30682, 37030, 38570, 46690, 50255, 63365, 70357, 76705, 88711, 100510, 107387, 126730, 140714, 153410, 177422, 214774, 291479, 351785, 443555, 536935, 582958, 703570, 887110, 1073870, 1457395, 2040353, 2914790, 4080706, 10201765, 20403530]

約数ペア:

[(1, 20403530), (2, 10201765), (5, 4080706), (7, 2914790), (10, 2040353), (14, 1457395), (19, 1073870), (23, 887110), (29, 703570), (35, 582958), (38, 536935), (46, 443555), (58, 351785), (70, 291479), (95, 214774), (115, 177422), (133, 153410), (145, 140714), (161, 126730), (190, 107387), (203, 100510), (230, 88711), (266, 76705), (290, 70357), (322, 63365), (406, 50255), (437, 46690), (529, 38570), (551, 37030), (665, 30682), (667, 30590), (805, 25346), (874, 23345), (1015, 20102), (1058, 19285), (1102, 18515), (1330, 15341), (1334, 15295), (1610, 12673), (2030, 10051), (2185, 9338), (2645, 7714), (2755, 7406), (3059, 6670), (3335, 6118), (3703, 5510), (3857, 5290), (4370, 4669)]