17663920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11621}}^1$

素因数の和:11653

約数の個数: 40

約数和(自身を含む): 43233840

約数和(自身を除く): 25569920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 11621, 23242, 46484, 58105, 92968, 116210, 185936, 220799, 232420, 441598, 464840, 883196, 929680, 1103995, 1766392, 2207990, 3532784, 4415980, 8831960, 17663920]

約数ペア:

[(1, 17663920), (2, 8831960), (4, 4415980), (5, 3532784), (8, 2207990), (10, 1766392), (16, 1103995), (19, 929680), (20, 883196), (38, 464840), (40, 441598), (76, 232420), (80, 220799), (95, 185936), (152, 116210), (190, 92968), (304, 58105), (380, 46484), (760, 23242), (1520, 11621)]