19289680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5881}}^1$

素因数の和:5935

約数の個数: 40

約数和(自身を含む): 45950184

約数和(自身を除く): 26660504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5881, 11762, 23524, 29405, 47048, 58810, 94096, 117620, 235240, 241121, 470480, 482242, 964484, 1205605, 1928968, 2411210, 3857936, 4822420, 9644840, 19289680]

約数ペア:

[(1, 19289680), (2, 9644840), (4, 4822420), (5, 3857936), (8, 2411210), (10, 1928968), (16, 1205605), (20, 964484), (40, 482242), (41, 470480), (80, 241121), (82, 235240), (164, 117620), (205, 94096), (328, 58810), (410, 47048), (656, 29405), (820, 23524), (1640, 11762), (3280, 5881)]