28575620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{541}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 63739200

約数和(自身を除く): 35163580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 541, 556, 695, 1082, 1390, 2164, 2641, 2705, 2780, 5282, 5410, 10279, 10564, 10820, 13205, 20558, 26410, 41116, 51395, 52820, 75199, 102790, 150398, 205580, 300796, 375995, 751990, 1428781, 1503980, 2857562, 5715124, 7143905, 14287810, 28575620]

約数ペア:

[(1, 28575620), (2, 14287810), (4, 7143905), (5, 5715124), (10, 2857562), (19, 1503980), (20, 1428781), (38, 751990), (76, 375995), (95, 300796), (139, 205580), (190, 150398), (278, 102790), (380, 75199), (541, 52820), (556, 51395), (695, 41116), (1082, 26410), (1390, 20558), (2164, 13205), (2641, 10820), (2705, 10564), (2780, 10279), (5282, 5410)]