220828520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{21821}}^1$

素因数の和:21866

約数の個数: 64

約数和(自身を含む): 565626240

約数和(自身を除く): 344797720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 10120, 21821, 43642, 87284, 109105, 174568, 218210, 240031, 436420, 480062, 501883, 872840, 960124, 1003766, 1200155, 1920248, 2007532, 2400310, 2509415, 4015064, 4800620, 5018830, 5520713, 9601240, 10037660, 11041426, 20075320, 22082852, 27603565, 44165704, 55207130, 110414260, 220828520]

約数ペア:

[(1, 220828520), (2, 110414260), (4, 55207130), (5, 44165704), (8, 27603565), (10, 22082852), (11, 20075320), (20, 11041426), (22, 10037660), (23, 9601240), (40, 5520713), (44, 5018830), (46, 4800620), (55, 4015064), (88, 2509415), (92, 2400310), (110, 2007532), (115, 1920248), (184, 1200155), (220, 1003766), (230, 960124), (253, 872840), (440, 501883), (460, 480062), (506, 436420), (920, 240031), (1012, 218210), (1265, 174568), (2024, 109105), (2530, 87284), (5060, 43642), (10120, 21821)]