408823040

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10303}}^1$

素因数の和:10355

約数の個数: 72

約数和(自身を含む): 1010946048

約数和(自身を除く): 602123008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 10303, 19840, 20606, 39680, 41212, 51515, 82424, 103030, 164848, 206060, 319393, 329696, 412120, 638786, 659392, 824240, 1277572, 1318784, 1596965, 1648480, 2555144, 2637568, 3193930, 3296960, 5110288, 6387860, 6593920, 10220576, 12775720, 13187840, 20441152, 25551440, 40882304, 51102880, 81764608, 102205760, 204411520, 408823040]

約数ペア:

[(1, 408823040), (2, 204411520), (4, 102205760), (5, 81764608), (8, 51102880), (10, 40882304), (16, 25551440), (20, 20441152), (31, 13187840), (32, 12775720), (40, 10220576), (62, 6593920), (64, 6387860), (80, 5110288), (124, 3296960), (128, 3193930), (155, 2637568), (160, 2555144), (248, 1648480), (256, 1596965), (310, 1318784), (320, 1277572), (496, 824240), (620, 659392), (640, 638786), (992, 412120), (1240, 329696), (1280, 319393), (1984, 206060), (2480, 164848), (3968, 103030), (4960, 82424), (7936, 51515), (9920, 41212), (10303, 39680), (19840, 20606)]