18380880

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{521}}^1$

素因数の和:554

約数の個数: 180

約数和(自身を含む): 71945172

約数和(自身を除く): 53564292

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 521, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1042, 1176, 1260, 1470, 1563, 1680, 1764, 1960, 2084, 2205, 2352, 2520, 2605, 2940, 3126, 3528, 3647, 3920, 4168, 4410, 4689, 5040, 5210, 5880, 6252, 7056, 7294, 7815, 8336, 8820, 9378, 10420, 10941, 11760, 12504, 14588, 15630, 17640, 18235, 18756, 20840, 21882, 23445, 25008, 25529, 29176, 31260, 32823, 35280, 36470, 37512, 41680, 43764, 46890, 51058, 54705, 58352, 62520, 65646, 72940, 75024, 76587, 87528, 93780, 102116, 109410, 125040, 127645, 131292, 145880, 153174, 164115, 175056, 187560, 204232, 218820, 229761, 255290, 262584, 291760, 306348, 328230, 375120, 382935, 408464, 437640, 459522, 510580, 525168, 612696, 656460, 765870, 875280, 919044, 1021160, 1148805, 1225392, 1312920, 1531740, 1838088, 2042320, 2297610, 2625840, 3063480, 3676176, 4595220, 6126960, 9190440, 18380880]

約数ペア:

[(1, 18380880), (2, 9190440), (3, 6126960), (4, 4595220), (5, 3676176), (6, 3063480), (7, 2625840), (8, 2297610), (9, 2042320), (10, 1838088), (12, 1531740), (14, 1312920), (15, 1225392), (16, 1148805), (18, 1021160), (20, 919044), (21, 875280), (24, 765870), (28, 656460), (30, 612696), (35, 525168), (36, 510580), (40, 459522), (42, 437640), (45, 408464), (48, 382935), (49, 375120), (56, 328230), (60, 306348), (63, 291760), (70, 262584), (72, 255290), (80, 229761), (84, 218820), (90, 204232), (98, 187560), (105, 175056), (112, 164115), (120, 153174), (126, 145880), (140, 131292), (144, 127645), (147, 125040), (168, 109410), (180, 102116), (196, 93780), (210, 87528), (240, 76587), (245, 75024), (252, 72940), (280, 65646), (294, 62520), (315, 58352), (336, 54705), (360, 51058), (392, 46890), (420, 43764), (441, 41680), (490, 37512), (504, 36470), (521, 35280), (560, 32823), (588, 31260), (630, 29176), (720, 25529), (735, 25008), (784, 23445), (840, 21882), (882, 20840), (980, 18756), (1008, 18235), (1042, 17640), (1176, 15630), (1260, 14588), (1470, 12504), (1563, 11760), (1680, 10941), (1764, 10420), (1960, 9378), (2084, 8820), (2205, 8336), (2352, 7815), (2520, 7294), (2605, 7056), (2940, 6252), (3126, 5880), (3528, 5210), (3647, 5040), (3920, 4689), (4168, 4410)]