20463906260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{720053}}^1$

素因数の和:720105

約数の個数: 72

約数和(自身を含む): 51714278280

約数和(自身を除く): 31250372020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2842, 4060, 5684, 7105, 14210, 28420, 720053, 1440106, 2880212, 3600265, 5040371, 7200530, 10080742, 14401060, 20161484, 20881537, 25201855, 35282597, 41763074, 50403710, 70565194, 83526148, 100807420, 104407685, 141130388, 146170759, 176412985, 208815370, 292341518, 352825970, 417630740, 584683036, 705651940, 730853795, 1023195313, 1461707590, 2046390626, 2923415180, 4092781252, 5115976565, 10231953130, 20463906260]

約数ペア:

[(1, 20463906260), (2, 10231953130), (4, 5115976565), (5, 4092781252), (7, 2923415180), (10, 2046390626), (14, 1461707590), (20, 1023195313), (28, 730853795), (29, 705651940), (35, 584683036), (49, 417630740), (58, 352825970), (70, 292341518), (98, 208815370), (116, 176412985), (140, 146170759), (145, 141130388), (196, 104407685), (203, 100807420), (245, 83526148), (290, 70565194), (406, 50403710), (490, 41763074), (580, 35282597), (812, 25201855), (980, 20881537), (1015, 20161484), (1421, 14401060), (2030, 10080742), (2842, 7200530), (4060, 5040371), (5684, 3600265), (7105, 2880212), (14210, 1440106), (28420, 720053)]