21993206520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{20389}}^1$

素因数の和:20593

約数の個数: 128

約数和(自身を含む): 67384872000

約数和(自身を除く): 45391665480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 101, 120, 178, 202, 267, 303, 356, 404, 445, 505, 534, 606, 712, 808, 890, 1010, 1068, 1212, 1335, 1515, 1780, 2020, 2136, 2424, 2670, 3030, 3560, 4040, 5340, 6060, 8989, 10680, 12120, 17978, 20389, 26967, 35956, 40778, 44945, 53934, 61167, 71912, 81556, 89890, 101945, 107868, 122334, 134835, 163112, 179780, 203890, 215736, 244668, 269670, 305835, 359560, 407780, 489336, 539340, 611670, 815560, 1078680, 1223340, 1814621, 2059289, 2446680, 3629242, 4118578, 5443863, 6177867, 7258484, 8237156, 9073105, 10296445, 10887726, 12355734, 14516968, 16474312, 18146210, 20592890, 21775452, 24711468, 27219315, 30889335, 36292420, 41185780, 43550904, 49422936, 54438630, 61778670, 72584840, 82371560, 108877260, 123557340, 183276721, 217754520, 247114680, 366553442, 549830163, 733106884, 916383605, 1099660326, 1466213768, 1832767210, 2199320652, 2749150815, 3665534420, 4398641304, 5498301630, 7331068840, 10996603260, 21993206520]

約数ペア:

[(1, 21993206520), (2, 10996603260), (3, 7331068840), (4, 5498301630), (5, 4398641304), (6, 3665534420), (8, 2749150815), (10, 2199320652), (12, 1832767210), (15, 1466213768), (20, 1099660326), (24, 916383605), (30, 733106884), (40, 549830163), (60, 366553442), (89, 247114680), (101, 217754520), (120, 183276721), (178, 123557340), (202, 108877260), (267, 82371560), (303, 72584840), (356, 61778670), (404, 54438630), (445, 49422936), (505, 43550904), (534, 41185780), (606, 36292420), (712, 30889335), (808, 27219315), (890, 24711468), (1010, 21775452), (1068, 20592890), (1212, 18146210), (1335, 16474312), (1515, 14516968), (1780, 12355734), (2020, 10887726), (2136, 10296445), (2424, 9073105), (2670, 8237156), (3030, 7258484), (3560, 6177867), (4040, 5443863), (5340, 4118578), (6060, 3629242), (8989, 2446680), (10680, 2059289), (12120, 1814621), (17978, 1223340), (20389, 1078680), (26967, 815560), (35956, 611670), (40778, 539340), (44945, 489336), (53934, 407780), (61167, 359560), (71912, 305835), (81556, 269670), (89890, 244668), (101945, 215736), (107868, 203890), (122334, 179780), (134835, 163112)]