25580960

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2621}}^1$

素因数の和:2697

約数の個数: 48

約数和(自身を含む): 61449192

約数和(自身を除く): 35868232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 2621, 4880, 5242, 9760, 10484, 13105, 20968, 26210, 41936, 52420, 83872, 104840, 159881, 209680, 319762, 419360, 639524, 799405, 1279048, 1598810, 2558096, 3197620, 5116192, 6395240, 12790480, 25580960]

約数ペア:

[(1, 25580960), (2, 12790480), (4, 6395240), (5, 5116192), (8, 3197620), (10, 2558096), (16, 1598810), (20, 1279048), (32, 799405), (40, 639524), (61, 419360), (80, 319762), (122, 209680), (160, 159881), (244, 104840), (305, 83872), (488, 52420), (610, 41936), (976, 26210), (1220, 20968), (1952, 13105), (2440, 10484), (2621, 9760), (4880, 5242)]