8487040

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 20655000

約数和(自身を除く): 12167960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 149, 160, 178, 298, 320, 356, 445, 596, 640, 712, 745, 890, 1192, 1424, 1490, 1780, 2384, 2848, 2980, 3560, 4768, 5696, 5960, 7120, 9536, 11392, 11920, 13261, 14240, 19072, 23840, 26522, 28480, 47680, 53044, 56960, 66305, 95360, 106088, 132610, 212176, 265220, 424352, 530440, 848704, 1060880, 1697408, 2121760, 4243520, 8487040]

約数ペア:

[(1, 8487040), (2, 4243520), (4, 2121760), (5, 1697408), (8, 1060880), (10, 848704), (16, 530440), (20, 424352), (32, 265220), (40, 212176), (64, 132610), (80, 106088), (89, 95360), (128, 66305), (149, 56960), (160, 53044), (178, 47680), (298, 28480), (320, 26522), (356, 23840), (445, 19072), (596, 14240), (640, 13261), (712, 11920), (745, 11392), (890, 9536), (1192, 7120), (1424, 5960), (1490, 5696), (1780, 4768), (2384, 3560), (2848, 2980)]