21258900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:135

約数の個数: 216

約数和(自身を含む): 75828480

約数和(自身を除く): 54569580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 25, 26, 30, 36, 39, 45, 46, 50, 52, 60, 65, 69, 75, 78, 79, 90, 92, 100, 115, 117, 130, 138, 150, 156, 158, 180, 195, 207, 225, 230, 234, 237, 260, 276, 299, 300, 316, 325, 345, 390, 395, 414, 450, 460, 468, 474, 575, 585, 598, 650, 690, 711, 780, 790, 828, 897, 900, 948, 975, 1027, 1035, 1150, 1170, 1185, 1196, 1300, 1380, 1422, 1495, 1580, 1725, 1794, 1817, 1950, 1975, 2054, 2070, 2300, 2340, 2370, 2691, 2844, 2925, 2990, 3081, 3450, 3555, 3588, 3634, 3900, 3950, 4108, 4140, 4485, 4740, 5135, 5175, 5382, 5451, 5850, 5925, 5980, 6162, 6900, 7110, 7268, 7475, 7900, 8970, 9085, 9243, 10270, 10350, 10764, 10902, 11700, 11850, 12324, 13455, 14220, 14950, 15405, 16353, 17775, 17940, 18170, 18486, 20540, 20700, 21804, 22425, 23621, 23700, 25675, 26910, 27255, 29900, 30810, 32706, 35550, 36340, 36972, 44850, 45425, 46215, 47242, 51350, 53820, 54510, 61620, 65412, 67275, 70863, 71100, 77025, 81765, 89700, 90850, 92430, 94484, 102700, 109020, 118105, 134550, 136275, 141726, 154050, 163530, 181700, 184860, 212589, 231075, 236210, 269100, 272550, 283452, 308100, 327060, 354315, 408825, 425178, 462150, 472420, 545100, 590525, 708630, 817650, 850356, 924300, 1062945, 1181050, 1417260, 1635300, 1771575, 2125890, 2362100, 3543150, 4251780, 5314725, 7086300, 10629450, 21258900]

約数ペア:

[(1, 21258900), (2, 10629450), (3, 7086300), (4, 5314725), (5, 4251780), (6, 3543150), (9, 2362100), (10, 2125890), (12, 1771575), (13, 1635300), (15, 1417260), (18, 1181050), (20, 1062945), (23, 924300), (25, 850356), (26, 817650), (30, 708630), (36, 590525), (39, 545100), (45, 472420), (46, 462150), (50, 425178), (52, 408825), (60, 354315), (65, 327060), (69, 308100), (75, 283452), (78, 272550), (79, 269100), (90, 236210), (92, 231075), (100, 212589), (115, 184860), (117, 181700), (130, 163530), (138, 154050), (150, 141726), (156, 136275), (158, 134550), (180, 118105), (195, 109020), (207, 102700), (225, 94484), (230, 92430), (234, 90850), (237, 89700), (260, 81765), (276, 77025), (299, 71100), (300, 70863), (316, 67275), (325, 65412), (345, 61620), (390, 54510), (395, 53820), (414, 51350), (450, 47242), (460, 46215), (468, 45425), (474, 44850), (575, 36972), (585, 36340), (598, 35550), (650, 32706), (690, 30810), (711, 29900), (780, 27255), (790, 26910), (828, 25675), (897, 23700), (900, 23621), (948, 22425), (975, 21804), (1027, 20700), (1035, 20540), (1150, 18486), (1170, 18170), (1185, 17940), (1196, 17775), (1300, 16353), (1380, 15405), (1422, 14950), (1495, 14220), (1580, 13455), (1725, 12324), (1794, 11850), (1817, 11700), (1950, 10902), (1975, 10764), (2054, 10350), (2070, 10270), (2300, 9243), (2340, 9085), (2370, 8970), (2691, 7900), (2844, 7475), (2925, 7268), (2990, 7110), (3081, 6900), (3450, 6162), (3555, 5980), (3588, 5925), (3634, 5850), (3900, 5451), (3950, 5382), (4108, 5175), (4140, 5135), (4485, 4740)]