20552800

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1160

約数の個数: 72

約数和(自身を含む): 52402896

約数和(自身を除く): 31850096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 92, 100, 115, 160, 184, 200, 230, 368, 400, 460, 575, 736, 800, 920, 1117, 1150, 1840, 2234, 2300, 3680, 4468, 4600, 5585, 8936, 9200, 11170, 17872, 18400, 22340, 25691, 27925, 35744, 44680, 51382, 55850, 89360, 102764, 111700, 128455, 178720, 205528, 223400, 256910, 411056, 446800, 513820, 642275, 822112, 893600, 1027640, 1284550, 2055280, 2569100, 4110560, 5138200, 10276400, 20552800]

約数ペア:

[(1, 20552800), (2, 10276400), (4, 5138200), (5, 4110560), (8, 2569100), (10, 2055280), (16, 1284550), (20, 1027640), (23, 893600), (25, 822112), (32, 642275), (40, 513820), (46, 446800), (50, 411056), (80, 256910), (92, 223400), (100, 205528), (115, 178720), (160, 128455), (184, 111700), (200, 102764), (230, 89360), (368, 55850), (400, 51382), (460, 44680), (575, 35744), (736, 27925), (800, 25691), (920, 22340), (1117, 18400), (1150, 17872), (1840, 11170), (2234, 9200), (2300, 8936), (3680, 5585), (4468, 4600)]