20441280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:326

約数の個数: 112

約数和(自身を含む): 65836800

約数和(自身を除く): 45395520

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, 160, 192, 199, 214, 240, 320, 321, 398, 428, 480, 535, 597, 642, 796, 856, 960, 995, 1070, 1194, 1284, 1592, 1605, 1712, 1990, 2140, 2388, 2568, 2985, 3184, 3210, 3424, 3980, 4280, 4776, 5136, 5970, 6368, 6420, 6848, 7960, 8560, 9552, 10272, 11940, 12736, 12840, 15920, 17120, 19104, 20544, 21293, 23880, 25680, 31840, 34240, 38208, 42586, 47760, 51360, 63680, 63879, 85172, 95520, 102720, 106465, 127758, 170344, 191040, 212930, 255516, 319395, 340688, 425860, 511032, 638790, 681376, 851720, 1022064, 1277580, 1362752, 1703440, 2044128, 2555160, 3406880, 4088256, 5110320, 6813760, 10220640, 20441280]

約数ペア:

[(1, 20441280), (2, 10220640), (3, 6813760), (4, 5110320), (5, 4088256), (6, 3406880), (8, 2555160), (10, 2044128), (12, 1703440), (15, 1362752), (16, 1277580), (20, 1022064), (24, 851720), (30, 681376), (32, 638790), (40, 511032), (48, 425860), (60, 340688), (64, 319395), (80, 255516), (96, 212930), (107, 191040), (120, 170344), (160, 127758), (192, 106465), (199, 102720), (214, 95520), (240, 85172), (320, 63879), (321, 63680), (398, 51360), (428, 47760), (480, 42586), (535, 38208), (597, 34240), (642, 31840), (796, 25680), (856, 23880), (960, 21293), (995, 20544), (1070, 19104), (1194, 17120), (1284, 15920), (1592, 12840), (1605, 12736), (1712, 11940), (1990, 10272), (2140, 9552), (2388, 8560), (2568, 7960), (2985, 6848), (3184, 6420), (3210, 6368), (3424, 5970), (3980, 5136), (4280, 4776)]