61221120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 198676800

約数和(自身を除く): 137455680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 107, 120, 128, 149, 160, 192, 214, 240, 256, 298, 320, 321, 384, 428, 447, 480, 535, 596, 640, 642, 745, 768, 856, 894, 960, 1070, 1192, 1280, 1284, 1490, 1605, 1712, 1788, 1920, 2140, 2235, 2384, 2568, 2980, 3210, 3424, 3576, 3840, 4280, 4470, 4768, 5136, 5960, 6420, 6848, 7152, 8560, 8940, 9536, 10272, 11920, 12840, 13696, 14304, 15943, 17120, 17880, 19072, 20544, 23840, 25680, 27392, 28608, 31886, 34240, 35760, 38144, 41088, 47680, 47829, 51360, 57216, 63772, 68480, 71520, 79715, 82176, 95360, 95658, 102720, 114432, 127544, 136960, 143040, 159430, 190720, 191316, 205440, 239145, 255088, 286080, 318860, 382632, 410880, 478290, 510176, 572160, 637720, 765264, 956580, 1020352, 1275440, 1530528, 1913160, 2040704, 2550880, 3061056, 3826320, 4081408, 5101760, 6122112, 7652640, 10203520, 12244224, 15305280, 20407040, 30610560, 61221120]

約数ペア:

[(1, 61221120), (2, 30610560), (3, 20407040), (4, 15305280), (5, 12244224), (6, 10203520), (8, 7652640), (10, 6122112), (12, 5101760), (15, 4081408), (16, 3826320), (20, 3061056), (24, 2550880), (30, 2040704), (32, 1913160), (40, 1530528), (48, 1275440), (60, 1020352), (64, 956580), (80, 765264), (96, 637720), (107, 572160), (120, 510176), (128, 478290), (149, 410880), (160, 382632), (192, 318860), (214, 286080), (240, 255088), (256, 239145), (298, 205440), (320, 191316), (321, 190720), (384, 159430), (428, 143040), (447, 136960), (480, 127544), (535, 114432), (596, 102720), (640, 95658), (642, 95360), (745, 82176), (768, 79715), (856, 71520), (894, 68480), (960, 63772), (1070, 57216), (1192, 51360), (1280, 47829), (1284, 47680), (1490, 41088), (1605, 38144), (1712, 35760), (1788, 34240), (1920, 31886), (2140, 28608), (2235, 27392), (2384, 25680), (2568, 23840), (2980, 20544), (3210, 19072), (3424, 17880), (3576, 17120), (3840, 15943), (4280, 14304), (4470, 13696), (4768, 12840), (5136, 11920), (5960, 10272), (6420, 9536), (6848, 8940), (7152, 8560)]