18426560

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:753

約数の個数: 56

約数和(自身を含む): 44439840

約数和(自身を除く): 26013280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 647, 712, 890, 1294, 1424, 1780, 2588, 2848, 3235, 3560, 5176, 5696, 6470, 7120, 10352, 12940, 14240, 20704, 25880, 28480, 41408, 51760, 57583, 103520, 115166, 207040, 230332, 287915, 460664, 575830, 921328, 1151660, 1842656, 2303320, 3685312, 4606640, 9213280, 18426560]

約数ペア:

[(1, 18426560), (2, 9213280), (4, 4606640), (5, 3685312), (8, 2303320), (10, 1842656), (16, 1151660), (20, 921328), (32, 575830), (40, 460664), (64, 287915), (80, 230332), (89, 207040), (160, 115166), (178, 103520), (320, 57583), (356, 51760), (445, 41408), (647, 28480), (712, 25880), (890, 20704), (1294, 14240), (1424, 12940), (1780, 10352), (2588, 7120), (2848, 6470), (3235, 5696), (3560, 5176)]