201320820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 638077440

約数和(自身を除く): 436756620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 109, 124, 155, 180, 186, 218, 279, 310, 327, 331, 372, 436, 465, 545, 558, 620, 654, 662, 930, 981, 993, 1090, 1116, 1308, 1324, 1395, 1635, 1655, 1860, 1962, 1986, 2180, 2790, 2979, 3270, 3310, 3379, 3924, 3972, 4905, 4965, 5580, 5958, 6540, 6620, 6758, 9810, 9930, 10137, 10261, 11916, 13516, 14895, 16895, 19620, 19860, 20274, 20522, 29790, 30411, 30783, 33790, 36079, 40548, 41044, 50685, 51305, 59580, 60822, 61566, 67580, 72158, 92349, 101370, 102610, 108237, 121644, 123132, 144316, 152055, 153915, 180395, 184698, 202740, 205220, 216474, 304110, 307830, 324711, 360790, 369396, 432948, 461745, 541185, 608220, 615660, 649422, 721580, 923490, 1082370, 1118449, 1298844, 1623555, 1846980, 2164740, 2236898, 3247110, 3355347, 4473796, 5592245, 6494220, 6710694, 10066041, 11184490, 13421388, 16776735, 20132082, 22368980, 33553470, 40264164, 50330205, 67106940, 100660410, 201320820]

約数ペア:

[(1, 201320820), (2, 100660410), (3, 67106940), (4, 50330205), (5, 40264164), (6, 33553470), (9, 22368980), (10, 20132082), (12, 16776735), (15, 13421388), (18, 11184490), (20, 10066041), (30, 6710694), (31, 6494220), (36, 5592245), (45, 4473796), (60, 3355347), (62, 3247110), (90, 2236898), (93, 2164740), (109, 1846980), (124, 1623555), (155, 1298844), (180, 1118449), (186, 1082370), (218, 923490), (279, 721580), (310, 649422), (327, 615660), (331, 608220), (372, 541185), (436, 461745), (465, 432948), (545, 369396), (558, 360790), (620, 324711), (654, 307830), (662, 304110), (930, 216474), (981, 205220), (993, 202740), (1090, 184698), (1116, 180395), (1308, 153915), (1324, 152055), (1395, 144316), (1635, 123132), (1655, 121644), (1860, 108237), (1962, 102610), (1986, 101370), (2180, 92349), (2790, 72158), (2979, 67580), (3270, 61566), (3310, 60822), (3379, 59580), (3924, 51305), (3972, 50685), (4905, 41044), (4965, 40548), (5580, 36079), (5958, 33790), (6540, 30783), (6620, 30411), (6758, 29790), (9810, 20522), (9930, 20274), (10137, 19860), (10261, 19620), (11916, 16895), (13516, 14895)]