204411520

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10303}}^1$

素因数の和:10353

約数の個数: 64

約数和(自身を含む): 504483840

約数和(自身を除く): 300072320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 10303, 19840, 20606, 41212, 51515, 82424, 103030, 164848, 206060, 319393, 329696, 412120, 638786, 659392, 824240, 1277572, 1318784, 1596965, 1648480, 2555144, 3193930, 3296960, 5110288, 6387860, 6593920, 10220576, 12775720, 20441152, 25551440, 40882304, 51102880, 102205760, 204411520]

約数ペア:

[(1, 204411520), (2, 102205760), (4, 51102880), (5, 40882304), (8, 25551440), (10, 20441152), (16, 12775720), (20, 10220576), (31, 6593920), (32, 6387860), (40, 5110288), (62, 3296960), (64, 3193930), (80, 2555144), (124, 1648480), (128, 1596965), (155, 1318784), (160, 1277572), (248, 824240), (310, 659392), (320, 638786), (496, 412120), (620, 329696), (640, 319393), (992, 206060), (1240, 164848), (1984, 103030), (2480, 82424), (3968, 51515), (4960, 41212), (9920, 20606), (10303, 19840)]