21993440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 60419520

約数和(自身を除く): 38426080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 73, 80, 112, 140, 146, 160, 224, 269, 280, 292, 365, 511, 538, 560, 584, 730, 1022, 1076, 1120, 1168, 1345, 1460, 1883, 2044, 2152, 2336, 2555, 2690, 2920, 3766, 4088, 4304, 5110, 5380, 5840, 7532, 8176, 8608, 9415, 10220, 10760, 11680, 15064, 16352, 18830, 19637, 20440, 21520, 30128, 37660, 39274, 40880, 43040, 60256, 75320, 78548, 81760, 98185, 137459, 150640, 157096, 196370, 274918, 301280, 314192, 392740, 549836, 628384, 687295, 785480, 1099672, 1374590, 1570960, 2199344, 2749180, 3141920, 4398688, 5498360, 10996720, 21993440]

約数ペア:

[(1, 21993440), (2, 10996720), (4, 5498360), (5, 4398688), (7, 3141920), (8, 2749180), (10, 2199344), (14, 1570960), (16, 1374590), (20, 1099672), (28, 785480), (32, 687295), (35, 628384), (40, 549836), (56, 392740), (70, 314192), (73, 301280), (80, 274918), (112, 196370), (140, 157096), (146, 150640), (160, 137459), (224, 98185), (269, 81760), (280, 78548), (292, 75320), (365, 60256), (511, 43040), (538, 40880), (560, 39274), (584, 37660), (730, 30128), (1022, 21520), (1076, 20440), (1120, 19637), (1168, 18830), (1345, 16352), (1460, 15064), (1883, 11680), (2044, 10760), (2152, 10220), (2336, 9415), (2555, 8608), (2690, 8176), (2920, 7532), (3766, 5840), (4088, 5380), (4304, 5110)]