25909760

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:401

約数の個数: 80

約数和(自身を含む): 64449000

約数和(自身を除く): 38539240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 349, 464, 512, 580, 640, 698, 928, 1160, 1280, 1396, 1745, 1856, 2320, 2560, 2792, 3490, 3712, 4640, 5584, 6980, 7424, 9280, 10121, 11168, 13960, 14848, 18560, 20242, 22336, 27920, 37120, 40484, 44672, 50605, 55840, 74240, 80968, 89344, 101210, 111680, 161936, 178688, 202420, 223360, 323872, 404840, 446720, 647744, 809680, 893440, 1295488, 1619360, 2590976, 3238720, 5181952, 6477440, 12954880, 25909760]

約数ペア:

[(1, 25909760), (2, 12954880), (4, 6477440), (5, 5181952), (8, 3238720), (10, 2590976), (16, 1619360), (20, 1295488), (29, 893440), (32, 809680), (40, 647744), (58, 446720), (64, 404840), (80, 323872), (116, 223360), (128, 202420), (145, 178688), (160, 161936), (232, 111680), (256, 101210), (290, 89344), (320, 80968), (349, 74240), (464, 55840), (512, 50605), (580, 44672), (640, 40484), (698, 37120), (928, 27920), (1160, 22336), (1280, 20242), (1396, 18560), (1745, 14848), (1856, 13960), (2320, 11168), (2560, 10121), (2792, 9280), (3490, 7424), (3712, 6980), (4640, 5584)]