20215548880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8151431}}^1$

素因数の和:8151475

約数の個数: 40

約数和(自身を含む): 48517323264

約数和(自身を除く): 28301774384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8151431, 16302862, 32605724, 40757155, 65211448, 81514310, 130422896, 163028620, 252694361, 326057240, 505388722, 652114480, 1010777444, 1263471805, 2021554888, 2526943610, 4043109776, 5053887220, 10107774440, 20215548880]

約数ペア:

[(1, 20215548880), (2, 10107774440), (4, 5053887220), (5, 4043109776), (8, 2526943610), (10, 2021554888), (16, 1263471805), (20, 1010777444), (31, 652114480), (40, 505388722), (62, 326057240), (80, 252694361), (124, 163028620), (155, 130422896), (248, 81514310), (310, 65211448), (496, 40757155), (620, 32605724), (1240, 16302862), (2480, 8151431)]