25817820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61471}}^1$

素因数の和:61490

約数の個数: 48

約数和(自身を含む): 82618368

約数和(自身を除く): 56800548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 61471, 122942, 184413, 245884, 307355, 368826, 430297, 614710, 737652, 860594, 922065, 1229420, 1290891, 1721188, 1844130, 2151485, 2581782, 3688260, 4302970, 5163564, 6454455, 8605940, 12908910, 25817820]

約数ペア:

[(1, 25817820), (2, 12908910), (3, 8605940), (4, 6454455), (5, 5163564), (6, 4302970), (7, 3688260), (10, 2581782), (12, 2151485), (14, 1844130), (15, 1721188), (20, 1290891), (21, 1229420), (28, 922065), (30, 860594), (35, 737652), (42, 614710), (60, 430297), (70, 368826), (84, 307355), (105, 245884), (140, 184413), (210, 122942), (420, 61471)]