19555920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:349

約数の個数: 120

約数和(自身を含む): 66475656

約数和(自身を除く): 46919736

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 157, 173, 180, 240, 314, 346, 360, 471, 519, 628, 692, 720, 785, 865, 942, 1038, 1256, 1384, 1413, 1557, 1570, 1730, 1884, 2076, 2355, 2512, 2595, 2768, 2826, 3114, 3140, 3460, 3768, 4152, 4710, 5190, 5652, 6228, 6280, 6920, 7065, 7536, 7785, 8304, 9420, 10380, 11304, 12456, 12560, 13840, 14130, 15570, 18840, 20760, 22608, 24912, 27161, 28260, 31140, 37680, 41520, 54322, 56520, 62280, 81483, 108644, 113040, 124560, 135805, 162966, 217288, 244449, 271610, 325932, 407415, 434576, 488898, 543220, 651864, 814830, 977796, 1086440, 1222245, 1303728, 1629660, 1955592, 2172880, 2444490, 3259320, 3911184, 4888980, 6518640, 9777960, 19555920]

約数ペア:

[(1, 19555920), (2, 9777960), (3, 6518640), (4, 4888980), (5, 3911184), (6, 3259320), (8, 2444490), (9, 2172880), (10, 1955592), (12, 1629660), (15, 1303728), (16, 1222245), (18, 1086440), (20, 977796), (24, 814830), (30, 651864), (36, 543220), (40, 488898), (45, 434576), (48, 407415), (60, 325932), (72, 271610), (80, 244449), (90, 217288), (120, 162966), (144, 135805), (157, 124560), (173, 113040), (180, 108644), (240, 81483), (314, 62280), (346, 56520), (360, 54322), (471, 41520), (519, 37680), (628, 31140), (692, 28260), (720, 27161), (785, 24912), (865, 22608), (942, 20760), (1038, 18840), (1256, 15570), (1384, 14130), (1413, 13840), (1557, 12560), (1570, 12456), (1730, 11304), (1884, 10380), (2076, 9420), (2355, 8304), (2512, 7785), (2595, 7536), (2768, 7065), (2826, 6920), (3114, 6280), (3140, 6228), (3460, 5652), (3768, 5190), (4152, 4710)]