251817120

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{821}}^1$

素因数の和:916

約数の個数: 192

約数和(自身を含む): 894862080

約数和(自身を除く): 643044960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 71, 72, 80, 90, 96, 108, 120, 135, 142, 144, 160, 180, 213, 216, 240, 270, 284, 288, 355, 360, 426, 432, 480, 540, 568, 639, 710, 720, 821, 852, 864, 1065, 1080, 1136, 1278, 1420, 1440, 1642, 1704, 1917, 2130, 2160, 2272, 2463, 2556, 2840, 3195, 3284, 3408, 3834, 4105, 4260, 4320, 4926, 5112, 5680, 6390, 6568, 6816, 7389, 7668, 8210, 8520, 9585, 9852, 10224, 11360, 12315, 12780, 13136, 14778, 15336, 16420, 17040, 19170, 19704, 20448, 22167, 24630, 25560, 26272, 29556, 30672, 32840, 34080, 36945, 38340, 39408, 44334, 49260, 51120, 58291, 59112, 61344, 65680, 73890, 76680, 78816, 88668, 98520, 102240, 110835, 116582, 118224, 131360, 147780, 153360, 174873, 177336, 197040, 221670, 233164, 236448, 291455, 295560, 306720, 349746, 354672, 394080, 443340, 466328, 524619, 582910, 591120, 699492, 709344, 874365, 886680, 932656, 1049238, 1165820, 1182240, 1398984, 1573857, 1748730, 1773360, 1865312, 2098476, 2331640, 2623095, 2797968, 3147714, 3497460, 3546720, 4196952, 4663280, 5246190, 5595936, 6295428, 6994920, 7869285, 8393904, 9326560, 10492380, 12590856, 13989840, 15738570, 16787808, 20984760, 25181712, 27979680, 31477140, 41969520, 50363424, 62954280, 83939040, 125908560, 251817120]

約数ペア:

[(1, 251817120), (2, 125908560), (3, 83939040), (4, 62954280), (5, 50363424), (6, 41969520), (8, 31477140), (9, 27979680), (10, 25181712), (12, 20984760), (15, 16787808), (16, 15738570), (18, 13989840), (20, 12590856), (24, 10492380), (27, 9326560), (30, 8393904), (32, 7869285), (36, 6994920), (40, 6295428), (45, 5595936), (48, 5246190), (54, 4663280), (60, 4196952), (71, 3546720), (72, 3497460), (80, 3147714), (90, 2797968), (96, 2623095), (108, 2331640), (120, 2098476), (135, 1865312), (142, 1773360), (144, 1748730), (160, 1573857), (180, 1398984), (213, 1182240), (216, 1165820), (240, 1049238), (270, 932656), (284, 886680), (288, 874365), (355, 709344), (360, 699492), (426, 591120), (432, 582910), (480, 524619), (540, 466328), (568, 443340), (639, 394080), (710, 354672), (720, 349746), (821, 306720), (852, 295560), (864, 291455), (1065, 236448), (1080, 233164), (1136, 221670), (1278, 197040), (1420, 177336), (1440, 174873), (1642, 153360), (1704, 147780), (1917, 131360), (2130, 118224), (2160, 116582), (2272, 110835), (2463, 102240), (2556, 98520), (2840, 88668), (3195, 78816), (3284, 76680), (3408, 73890), (3834, 65680), (4105, 61344), (4260, 59112), (4320, 58291), (4926, 51120), (5112, 49260), (5680, 44334), (6390, 39408), (6568, 38340), (6816, 36945), (7389, 34080), (7668, 32840), (8210, 30672), (8520, 29556), (9585, 26272), (9852, 25560), (10224, 24630), (11360, 22167), (12315, 20448), (12780, 19704), (13136, 19170), (14778, 17040), (15336, 16420)]