20029760

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1181}}^1$

素因数の和:1251

約数の個数: 56

約数和(自身を含む): 48636936

約数和(自身を除く): 28607176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 160, 212, 265, 320, 424, 530, 848, 1060, 1181, 1696, 2120, 2362, 3392, 4240, 4724, 5905, 8480, 9448, 11810, 16960, 18896, 23620, 37792, 47240, 62593, 75584, 94480, 125186, 188960, 250372, 312965, 377920, 500744, 625930, 1001488, 1251860, 2002976, 2503720, 4005952, 5007440, 10014880, 20029760]

約数ペア:

[(1, 20029760), (2, 10014880), (4, 5007440), (5, 4005952), (8, 2503720), (10, 2002976), (16, 1251860), (20, 1001488), (32, 625930), (40, 500744), (53, 377920), (64, 312965), (80, 250372), (106, 188960), (160, 125186), (212, 94480), (265, 75584), (320, 62593), (424, 47240), (530, 37792), (848, 23620), (1060, 18896), (1181, 16960), (1696, 11810), (2120, 9448), (2362, 8480), (3392, 5905), (4240, 4724)]