20613240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57259}}^1$

素因数の和:57276

約数の個数: 48

約数和(自身を含む): 66994200

約数和(自身を除く): 46380960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57259, 114518, 171777, 229036, 286295, 343554, 458072, 515331, 572590, 687108, 858885, 1030662, 1145180, 1374216, 1717770, 2061324, 2290360, 2576655, 3435540, 4122648, 5153310, 6871080, 10306620, 20613240]

約数ペア:

[(1, 20613240), (2, 10306620), (3, 6871080), (4, 5153310), (5, 4122648), (6, 3435540), (8, 2576655), (9, 2290360), (10, 2061324), (12, 1717770), (15, 1374216), (18, 1145180), (20, 1030662), (24, 858885), (30, 687108), (36, 572590), (40, 515331), (45, 458072), (60, 343554), (72, 286295), (90, 229036), (120, 171777), (180, 114518), (360, 57259)]