2458820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 6502104

約数和(自身を除く): 4043284

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 193, 196, 245, 260, 364, 386, 455, 490, 637, 772, 910, 965, 980, 1274, 1351, 1820, 1930, 2509, 2548, 2702, 3185, 3860, 5018, 5404, 6370, 6755, 9457, 10036, 12545, 12740, 13510, 17563, 18914, 25090, 27020, 35126, 37828, 47285, 50180, 70252, 87815, 94570, 122941, 175630, 189140, 245882, 351260, 491764, 614705, 1229410, 2458820]

約数ペア:

[(1, 2458820), (2, 1229410), (4, 614705), (5, 491764), (7, 351260), (10, 245882), (13, 189140), (14, 175630), (20, 122941), (26, 94570), (28, 87815), (35, 70252), (49, 50180), (52, 47285), (65, 37828), (70, 35126), (91, 27020), (98, 25090), (130, 18914), (140, 17563), (182, 13510), (193, 12740), (196, 12545), (245, 10036), (260, 9457), (364, 6755), (386, 6370), (455, 5404), (490, 5018), (637, 3860), (772, 3185), (910, 2702), (965, 2548), (980, 2509), (1274, 1930), (1351, 1820)]