18819520

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2557}}^1$

素因数の和:2597

約数の個数: 56

約数和(自身を含む): 46780704

約数和(自身を除く): 27961184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2557, 3680, 5114, 7360, 10228, 12785, 20456, 25570, 40912, 51140, 58811, 81824, 102280, 117622, 163648, 204560, 235244, 294055, 409120, 470488, 588110, 818240, 940976, 1176220, 1881952, 2352440, 3763904, 4704880, 9409760, 18819520]

約数ペア:

[(1, 18819520), (2, 9409760), (4, 4704880), (5, 3763904), (8, 2352440), (10, 1881952), (16, 1176220), (20, 940976), (23, 818240), (32, 588110), (40, 470488), (46, 409120), (64, 294055), (80, 235244), (92, 204560), (115, 163648), (160, 117622), (184, 102280), (230, 81824), (320, 58811), (368, 51140), (460, 40912), (736, 25570), (920, 20456), (1472, 12785), (1840, 10228), (2557, 7360), (3680, 5114)]