80311880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{523}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 198072000

約数和(自身を除く): 117760120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 349, 440, 523, 698, 1046, 1396, 1745, 2092, 2615, 2792, 3490, 3839, 4184, 5230, 5753, 6980, 7678, 10460, 11506, 13960, 15356, 19195, 20920, 23012, 28765, 30712, 38390, 46024, 57530, 76780, 115060, 153560, 182527, 230120, 365054, 730108, 912635, 1460216, 1825270, 2007797, 3650540, 4015594, 7301080, 8031188, 10038985, 16062376, 20077970, 40155940, 80311880]

約数ペア:

[(1, 80311880), (2, 40155940), (4, 20077970), (5, 16062376), (8, 10038985), (10, 8031188), (11, 7301080), (20, 4015594), (22, 3650540), (40, 2007797), (44, 1825270), (55, 1460216), (88, 912635), (110, 730108), (220, 365054), (349, 230120), (440, 182527), (523, 153560), (698, 115060), (1046, 76780), (1396, 57530), (1745, 46024), (2092, 38390), (2615, 30712), (2792, 28765), (3490, 23012), (3839, 20920), (4184, 19195), (5230, 15356), (5753, 13960), (6980, 11506), (7678, 10460)]