18205920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1$

素因数の和:337

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 45479520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 96, 120, 141, 144, 160, 180, 188, 235, 240, 269, 282, 288, 360, 376, 423, 470, 480, 538, 564, 705, 720, 752, 807, 846, 940, 1076, 1128, 1345, 1410, 1440, 1504, 1614, 1692, 1880, 2115, 2152, 2256, 2421, 2690, 2820, 3228, 3384, 3760, 4035, 4230, 4304, 4512, 4842, 5380, 5640, 6456, 6768, 7520, 8070, 8460, 8608, 9684, 10760, 11280, 12105, 12643, 12912, 13536, 16140, 16920, 19368, 21520, 22560, 24210, 25286, 25824, 32280, 33840, 37929, 38736, 43040, 48420, 50572, 63215, 64560, 67680, 75858, 77472, 96840, 101144, 113787, 126430, 129120, 151716, 189645, 193680, 202288, 227574, 252860, 303432, 379290, 387360, 404576, 455148, 505720, 568935, 606864, 758580, 910296, 1011440, 1137870, 1213728, 1517160, 1820592, 2022880, 2275740, 3034320, 3641184, 4551480, 6068640, 9102960, 18205920]

約数ペア:

[(1, 18205920), (2, 9102960), (3, 6068640), (4, 4551480), (5, 3641184), (6, 3034320), (8, 2275740), (9, 2022880), (10, 1820592), (12, 1517160), (15, 1213728), (16, 1137870), (18, 1011440), (20, 910296), (24, 758580), (30, 606864), (32, 568935), (36, 505720), (40, 455148), (45, 404576), (47, 387360), (48, 379290), (60, 303432), (72, 252860), (80, 227574), (90, 202288), (94, 193680), (96, 189645), (120, 151716), (141, 129120), (144, 126430), (160, 113787), (180, 101144), (188, 96840), (235, 77472), (240, 75858), (269, 67680), (282, 64560), (288, 63215), (360, 50572), (376, 48420), (423, 43040), (470, 38736), (480, 37929), (538, 33840), (564, 32280), (705, 25824), (720, 25286), (752, 24210), (807, 22560), (846, 21520), (940, 19368), (1076, 16920), (1128, 16140), (1345, 13536), (1410, 12912), (1440, 12643), (1504, 12105), (1614, 11280), (1692, 10760), (1880, 9684), (2115, 8608), (2152, 8460), (2256, 8070), (2421, 7520), (2690, 6768), (2820, 6456), (3228, 5640), (3384, 5380), (3760, 4842), (4035, 4512), (4230, 4304)]