205276720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2621}}^1$

素因数の和:2734

約数の個数: 80

約数和(自身を含む): 526707360

約数和(自身を除く): 321430640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 440, 445, 712, 880, 890, 979, 1424, 1780, 1958, 2621, 3560, 3916, 4895, 5242, 7120, 7832, 9790, 10484, 13105, 15664, 19580, 20968, 26210, 28831, 39160, 41936, 52420, 57662, 78320, 104840, 115324, 144155, 209680, 230648, 233269, 288310, 461296, 466538, 576620, 933076, 1153240, 1166345, 1866152, 2306480, 2332690, 2565959, 3732304, 4665380, 5131918, 9330760, 10263836, 12829795, 18661520, 20527672, 25659590, 41055344, 51319180, 102638360, 205276720]

約数ペア:

[(1, 205276720), (2, 102638360), (4, 51319180), (5, 41055344), (8, 25659590), (10, 20527672), (11, 18661520), (16, 12829795), (20, 10263836), (22, 9330760), (40, 5131918), (44, 4665380), (55, 3732304), (80, 2565959), (88, 2332690), (89, 2306480), (110, 1866152), (176, 1166345), (178, 1153240), (220, 933076), (356, 576620), (440, 466538), (445, 461296), (712, 288310), (880, 233269), (890, 230648), (979, 209680), (1424, 144155), (1780, 115324), (1958, 104840), (2621, 78320), (3560, 57662), (3916, 52420), (4895, 41936), (5242, 39160), (7120, 28831), (7832, 26210), (9790, 20968), (10484, 19580), (13105, 15664)]