28690480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1$

素因数の和:603

約数の個数: 120

約数和(自身を含む): 83713392

約数和(自身を除く): 55022912

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 560, 563, 637, 728, 784, 910, 980, 1040, 1126, 1274, 1456, 1820, 1960, 2252, 2548, 2815, 3185, 3640, 3920, 3941, 4504, 5096, 5630, 6370, 7280, 7319, 7882, 9008, 10192, 11260, 12740, 14638, 15764, 19705, 22520, 25480, 27587, 29276, 31528, 36595, 39410, 45040, 50960, 51233, 55174, 58552, 63056, 73190, 78820, 102466, 110348, 117104, 137935, 146380, 157640, 204932, 220696, 256165, 275870, 292760, 315280, 358631, 409864, 441392, 512330, 551740, 585520, 717262, 819728, 1024660, 1103480, 1434524, 1793155, 2049320, 2206960, 2869048, 3586310, 4098640, 5738096, 7172620, 14345240, 28690480]

約数ペア:

[(1, 28690480), (2, 14345240), (4, 7172620), (5, 5738096), (7, 4098640), (8, 3586310), (10, 2869048), (13, 2206960), (14, 2049320), (16, 1793155), (20, 1434524), (26, 1103480), (28, 1024660), (35, 819728), (40, 717262), (49, 585520), (52, 551740), (56, 512330), (65, 441392), (70, 409864), (80, 358631), (91, 315280), (98, 292760), (104, 275870), (112, 256165), (130, 220696), (140, 204932), (182, 157640), (196, 146380), (208, 137935), (245, 117104), (260, 110348), (280, 102466), (364, 78820), (392, 73190), (455, 63056), (490, 58552), (520, 55174), (560, 51233), (563, 50960), (637, 45040), (728, 39410), (784, 36595), (910, 31528), (980, 29276), (1040, 27587), (1126, 25480), (1274, 22520), (1456, 19705), (1820, 15764), (1960, 14638), (2252, 12740), (2548, 11260), (2815, 10192), (3185, 9008), (3640, 7882), (3920, 7319), (3941, 7280), (4504, 6370), (5096, 5630)]