28730380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1259}}^1$

素因数の和:1438

約数の個数: 48

約数和(自身を含む): 69431040

約数和(自身を除く): 40700660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1259, 1630, 2282, 2518, 3260, 4564, 5036, 5705, 6295, 8813, 11410, 12590, 17626, 22820, 25180, 35252, 44065, 88130, 176260, 205217, 410434, 820868, 1026085, 1436519, 2052170, 2873038, 4104340, 5746076, 7182595, 14365190, 28730380]

約数ペア:

[(1, 28730380), (2, 14365190), (4, 7182595), (5, 5746076), (7, 4104340), (10, 2873038), (14, 2052170), (20, 1436519), (28, 1026085), (35, 820868), (70, 410434), (140, 205217), (163, 176260), (326, 88130), (652, 44065), (815, 35252), (1141, 25180), (1259, 22820), (1630, 17626), (2282, 12590), (2518, 11410), (3260, 8813), (4564, 6295), (5036, 5705)]