245895440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{769}}^1$

素因数の和:1360

約数の個数: 80

約数和(自身を含む): 655374720

約数和(自身を除く): 409479280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 571, 769, 1142, 1538, 2284, 2855, 3076, 3845, 3997, 4568, 5383, 5710, 6152, 7690, 7994, 9136, 10766, 11420, 12304, 15380, 15988, 19985, 21532, 22840, 26915, 30760, 31976, 39970, 43064, 45680, 53830, 61520, 63952, 79940, 86128, 107660, 159880, 215320, 319760, 430640, 439099, 878198, 1756396, 2195495, 3073693, 3512792, 4390990, 6147386, 7025584, 8781980, 12294772, 15368465, 17563960, 24589544, 30736930, 35127920, 49179088, 61473860, 122947720, 245895440]

約数ペア:

[(1, 245895440), (2, 122947720), (4, 61473860), (5, 49179088), (7, 35127920), (8, 30736930), (10, 24589544), (14, 17563960), (16, 15368465), (20, 12294772), (28, 8781980), (35, 7025584), (40, 6147386), (56, 4390990), (70, 3512792), (80, 3073693), (112, 2195495), (140, 1756396), (280, 878198), (560, 439099), (571, 430640), (769, 319760), (1142, 215320), (1538, 159880), (2284, 107660), (2855, 86128), (3076, 79940), (3845, 63952), (3997, 61520), (4568, 53830), (5383, 45680), (5710, 43064), (6152, 39970), (7690, 31976), (7994, 30760), (9136, 26915), (10766, 22840), (11420, 21532), (12304, 19985), (15380, 15988)]