251852720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10459}}^1$

素因数の和:10522

約数の個数: 80

約数和(自身を含む): 684837120

約数和(自身を除く): 432984400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1505, 1720, 2408, 3010, 3440, 4816, 6020, 10459, 12040, 20918, 24080, 41836, 52295, 73213, 83672, 104590, 146426, 167344, 209180, 292852, 366065, 418360, 449737, 585704, 732130, 836720, 899474, 1171408, 1464260, 1798948, 2248685, 2928520, 3148159, 3597896, 4497370, 5857040, 6296318, 7195792, 8994740, 12592636, 15740795, 17989480, 25185272, 31481590, 35978960, 50370544, 62963180, 125926360, 251852720]

約数ペア:

[(1, 251852720), (2, 125926360), (4, 62963180), (5, 50370544), (7, 35978960), (8, 31481590), (10, 25185272), (14, 17989480), (16, 15740795), (20, 12592636), (28, 8994740), (35, 7195792), (40, 6296318), (43, 5857040), (56, 4497370), (70, 3597896), (80, 3148159), (86, 2928520), (112, 2248685), (140, 1798948), (172, 1464260), (215, 1171408), (280, 899474), (301, 836720), (344, 732130), (430, 585704), (560, 449737), (602, 418360), (688, 366065), (860, 292852), (1204, 209180), (1505, 167344), (1720, 146426), (2408, 104590), (3010, 83672), (3440, 73213), (4816, 52295), (6020, 41836), (10459, 24080), (12040, 20918)]