20179964

素因数分解:

$2^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{691}}^1$

素因数の和:858

約数の個数: 36

約数和(自身を含む): 41416200

約数和(自身を除く): 21236236

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 149, 196, 298, 596, 691, 1043, 1382, 2086, 2764, 4172, 4837, 7301, 9674, 14602, 19348, 29204, 33859, 67718, 102959, 135436, 205918, 411836, 720713, 1441426, 2882852, 5044991, 10089982, 20179964]

約数ペア:

[(1, 20179964), (2, 10089982), (4, 5044991), (7, 2882852), (14, 1441426), (28, 720713), (49, 411836), (98, 205918), (149, 135436), (196, 102959), (298, 67718), (596, 33859), (691, 29204), (1043, 19348), (1382, 14602), (2086, 9674), (2764, 7301), (4172, 4837)]