21403760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1033}}^1$

素因数の和:1090

約数の個数: 80

約数和(自身を含む): 58466496

約数和(自身を除く): 37062736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1033, 1036, 1295, 1480, 2066, 2072, 2590, 2960, 4132, 4144, 5165, 5180, 7231, 8264, 10330, 10360, 14462, 16528, 20660, 20720, 28924, 36155, 38221, 41320, 57848, 72310, 76442, 82640, 115696, 144620, 152884, 191105, 267547, 289240, 305768, 382210, 535094, 578480, 611536, 764420, 1070188, 1337735, 1528840, 2140376, 2675470, 3057680, 4280752, 5350940, 10701880, 21403760]

約数ペア:

[(1, 21403760), (2, 10701880), (4, 5350940), (5, 4280752), (7, 3057680), (8, 2675470), (10, 2140376), (14, 1528840), (16, 1337735), (20, 1070188), (28, 764420), (35, 611536), (37, 578480), (40, 535094), (56, 382210), (70, 305768), (74, 289240), (80, 267547), (112, 191105), (140, 152884), (148, 144620), (185, 115696), (259, 82640), (280, 76442), (296, 72310), (370, 57848), (518, 41320), (560, 38221), (592, 36155), (740, 28924), (1033, 20720), (1036, 20660), (1295, 16528), (1480, 14462), (2066, 10360), (2072, 10330), (2590, 8264), (2960, 7231), (4132, 5180), (4144, 5165)]