20828928

素因数分解:

$2^8\times 3^1\times {\mathrm{37}}^1\times {\mathrm{733}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 57011248

約数和(自身を除く): 36182320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 48, 64, 74, 96, 111, 128, 148, 192, 222, 256, 296, 384, 444, 592, 733, 768, 888, 1184, 1466, 1776, 2199, 2368, 2932, 3552, 4398, 4736, 5864, 7104, 8796, 9472, 11728, 14208, 17592, 23456, 27121, 28416, 35184, 46912, 54242, 70368, 81363, 93824, 108484, 140736, 162726, 187648, 216968, 281472, 325452, 433936, 562944, 650904, 867872, 1301808, 1735744, 2603616, 3471488, 5207232, 6942976, 10414464, 20828928]

約数ペア:

[(1, 20828928), (2, 10414464), (3, 6942976), (4, 5207232), (6, 3471488), (8, 2603616), (12, 1735744), (16, 1301808), (24, 867872), (32, 650904), (37, 562944), (48, 433936), (64, 325452), (74, 281472), (96, 216968), (111, 187648), (128, 162726), (148, 140736), (192, 108484), (222, 93824), (256, 81363), (296, 70368), (384, 54242), (444, 46912), (592, 35184), (733, 28416), (768, 27121), (888, 23456), (1184, 17592), (1466, 14208), (1776, 11728), (2199, 9472), (2368, 8796), (2932, 7104), (3552, 5864), (4398, 4736)]