217545960

素因数分解:

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

素因数の和:232

約数の個数: 128

約数和(自身を含む): 686880000

約数和(自身を除く): 469334040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 149, 184, 230, 276, 298, 345, 447, 460, 529, 552, 596, 690, 745, 894, 920, 1058, 1192, 1380, 1490, 1587, 1788, 2116, 2235, 2645, 2760, 2980, 3174, 3427, 3576, 4232, 4470, 5290, 5960, 6348, 6854, 7935, 8940, 10281, 10580, 12167, 12696, 13708, 15870, 17135, 17880, 20562, 21160, 24334, 27416, 31740, 34270, 36501, 41124, 48668, 51405, 60835, 63480, 68540, 73002, 78821, 82248, 97336, 102810, 121670, 137080, 146004, 157642, 182505, 205620, 236463, 243340, 292008, 315284, 365010, 394105, 411240, 472926, 486680, 630568, 730020, 788210, 945852, 1182315, 1460040, 1576420, 1812883, 1891704, 2364630, 3152840, 3625766, 4729260, 5438649, 7251532, 9064415, 9458520, 10877298, 14503064, 18128830, 21754596, 27193245, 36257660, 43509192, 54386490, 72515320, 108772980, 217545960]

約数ペア:

[(1, 217545960), (2, 108772980), (3, 72515320), (4, 54386490), (5, 43509192), (6, 36257660), (8, 27193245), (10, 21754596), (12, 18128830), (15, 14503064), (20, 10877298), (23, 9458520), (24, 9064415), (30, 7251532), (40, 5438649), (46, 4729260), (60, 3625766), (69, 3152840), (92, 2364630), (115, 1891704), (120, 1812883), (138, 1576420), (149, 1460040), (184, 1182315), (230, 945852), (276, 788210), (298, 730020), (345, 630568), (447, 486680), (460, 472926), (529, 411240), (552, 394105), (596, 365010), (690, 315284), (745, 292008), (894, 243340), (920, 236463), (1058, 205620), (1192, 182505), (1380, 157642), (1490, 146004), (1587, 137080), (1788, 121670), (2116, 102810), (2235, 97336), (2645, 82248), (2760, 78821), (2980, 73002), (3174, 68540), (3427, 63480), (3576, 60835), (4232, 51405), (4470, 48668), (5290, 41124), (5960, 36501), (6348, 34270), (6854, 31740), (7935, 27416), (8940, 24334), (10281, 21160), (10580, 20562), (12167, 17880), (12696, 17135), (13708, 15870)]