21552800

素因数分解:

$2^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{929}}^1$

素因数の和:978

約数の個数: 72

約数和(自身を含む): 54488700

約数和(自身を除く): 32935900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 145, 160, 200, 232, 290, 400, 464, 580, 725, 800, 928, 929, 1160, 1450, 1858, 2320, 2900, 3716, 4640, 4645, 5800, 7432, 9290, 11600, 14864, 18580, 23200, 23225, 26941, 29728, 37160, 46450, 53882, 74320, 92900, 107764, 134705, 148640, 185800, 215528, 269410, 371600, 431056, 538820, 673525, 743200, 862112, 1077640, 1347050, 2155280, 2694100, 4310560, 5388200, 10776400, 21552800]

約数ペア:

[(1, 21552800), (2, 10776400), (4, 5388200), (5, 4310560), (8, 2694100), (10, 2155280), (16, 1347050), (20, 1077640), (25, 862112), (29, 743200), (32, 673525), (40, 538820), (50, 431056), (58, 371600), (80, 269410), (100, 215528), (116, 185800), (145, 148640), (160, 134705), (200, 107764), (232, 92900), (290, 74320), (400, 53882), (464, 46450), (580, 37160), (725, 29728), (800, 26941), (928, 23225), (929, 23200), (1160, 18580), (1450, 14864), (1858, 11600), (2320, 9290), (2900, 7432), (3716, 5800), (4640, 4645)]