19945600

素因数分解:

$2^7\times 5^2\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:318

約数の個数: 96

約数和(自身を含む): 51603840

約数和(自身を除く): 31658240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 128, 160, 184, 200, 230, 271, 320, 368, 400, 460, 542, 575, 640, 736, 800, 920, 1084, 1150, 1355, 1472, 1600, 1840, 2168, 2300, 2710, 2944, 3200, 3680, 4336, 4600, 5420, 6233, 6775, 7360, 8672, 9200, 10840, 12466, 13550, 14720, 17344, 18400, 21680, 24932, 27100, 31165, 34688, 36800, 43360, 49864, 54200, 62330, 73600, 86720, 99728, 108400, 124660, 155825, 173440, 199456, 216800, 249320, 311650, 398912, 433600, 498640, 623300, 797824, 867200, 997280, 1246600, 1994560, 2493200, 3989120, 4986400, 9972800, 19945600]

約数ペア:

[(1, 19945600), (2, 9972800), (4, 4986400), (5, 3989120), (8, 2493200), (10, 1994560), (16, 1246600), (20, 997280), (23, 867200), (25, 797824), (32, 623300), (40, 498640), (46, 433600), (50, 398912), (64, 311650), (80, 249320), (92, 216800), (100, 199456), (115, 173440), (128, 155825), (160, 124660), (184, 108400), (200, 99728), (230, 86720), (271, 73600), (320, 62330), (368, 54200), (400, 49864), (460, 43360), (542, 36800), (575, 34688), (640, 31165), (736, 27100), (800, 24932), (920, 21680), (1084, 18400), (1150, 17344), (1355, 14720), (1472, 13550), (1600, 12466), (1840, 10840), (2168, 9200), (2300, 8672), (2710, 7360), (2944, 6775), (3200, 6233), (3680, 5420), (4336, 4600)]