18917040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{149}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 61714800

約数和(自身を除く): 42797760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 149, 184, 230, 240, 276, 298, 345, 368, 447, 460, 529, 552, 596, 690, 745, 894, 920, 1058, 1104, 1192, 1380, 1490, 1587, 1788, 1840, 2116, 2235, 2384, 2645, 2760, 2980, 3174, 3427, 3576, 4232, 4470, 5290, 5520, 5960, 6348, 6854, 7152, 7935, 8464, 8940, 10281, 10580, 11920, 12696, 13708, 15870, 17135, 17880, 20562, 21160, 25392, 27416, 31740, 34270, 35760, 41124, 42320, 51405, 54832, 63480, 68540, 78821, 82248, 102810, 126960, 137080, 157642, 164496, 205620, 236463, 274160, 315284, 394105, 411240, 472926, 630568, 788210, 822480, 945852, 1182315, 1261136, 1576420, 1891704, 2364630, 3152840, 3783408, 4729260, 6305680, 9458520, 18917040]

約数ペア:

[(1, 18917040), (2, 9458520), (3, 6305680), (4, 4729260), (5, 3783408), (6, 3152840), (8, 2364630), (10, 1891704), (12, 1576420), (15, 1261136), (16, 1182315), (20, 945852), (23, 822480), (24, 788210), (30, 630568), (40, 472926), (46, 411240), (48, 394105), (60, 315284), (69, 274160), (80, 236463), (92, 205620), (115, 164496), (120, 157642), (138, 137080), (149, 126960), (184, 102810), (230, 82248), (240, 78821), (276, 68540), (298, 63480), (345, 54832), (368, 51405), (447, 42320), (460, 41124), (529, 35760), (552, 34270), (596, 31740), (690, 27416), (745, 25392), (894, 21160), (920, 20562), (1058, 17880), (1104, 17135), (1192, 15870), (1380, 13708), (1490, 12696), (1587, 11920), (1788, 10580), (1840, 10281), (2116, 8940), (2235, 8464), (2384, 7935), (2645, 7152), (2760, 6854), (2980, 6348), (3174, 5960), (3427, 5520), (3576, 5290), (4232, 4470)]