201755720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 462369600

約数和(自身を除く): 260613880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 139, 262, 277, 278, 524, 554, 556, 655, 695, 1048, 1108, 1112, 1310, 1385, 1390, 2216, 2620, 2770, 2780, 5240, 5540, 5560, 11080, 18209, 36287, 36418, 38503, 72574, 72836, 77006, 91045, 145148, 145672, 154012, 181435, 182090, 192515, 290296, 308024, 362870, 364180, 385030, 725740, 728360, 770060, 1451480, 1540120, 5043893, 10087786, 20175572, 25219465, 40351144, 50438930, 100877860, 201755720]

約数ペア:

[(1, 201755720), (2, 100877860), (4, 50438930), (5, 40351144), (8, 25219465), (10, 20175572), (20, 10087786), (40, 5043893), (131, 1540120), (139, 1451480), (262, 770060), (277, 728360), (278, 725740), (524, 385030), (554, 364180), (556, 362870), (655, 308024), (695, 290296), (1048, 192515), (1108, 182090), (1112, 181435), (1310, 154012), (1385, 145672), (1390, 145148), (2216, 91045), (2620, 77006), (2770, 72836), (2780, 72574), (5240, 38503), (5540, 36418), (5560, 36287), (11080, 18209)]