21552240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1009}}^1$

素因数の和:1114

約数の個数: 80

約数和(自身を含む): 67629600

約数和(自身を除く): 46077360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 890, 1009, 1068, 1335, 1424, 1780, 2018, 2136, 2670, 3027, 3560, 4036, 4272, 5045, 5340, 6054, 7120, 8072, 10090, 10680, 12108, 15135, 16144, 20180, 21360, 24216, 30270, 40360, 48432, 60540, 80720, 89801, 121080, 179602, 242160, 269403, 359204, 449005, 538806, 718408, 898010, 1077612, 1347015, 1436816, 1796020, 2155224, 2694030, 3592040, 4310448, 5388060, 7184080, 10776120, 21552240]

約数ペア:

[(1, 21552240), (2, 10776120), (3, 7184080), (4, 5388060), (5, 4310448), (6, 3592040), (8, 2694030), (10, 2155224), (12, 1796020), (15, 1436816), (16, 1347015), (20, 1077612), (24, 898010), (30, 718408), (40, 538806), (48, 449005), (60, 359204), (80, 269403), (89, 242160), (120, 179602), (178, 121080), (240, 89801), (267, 80720), (356, 60540), (445, 48432), (534, 40360), (712, 30270), (890, 24216), (1009, 21360), (1068, 20180), (1335, 16144), (1424, 15135), (1780, 12108), (2018, 10680), (2136, 10090), (2670, 8072), (3027, 7120), (3560, 6054), (4036, 5340), (4272, 5045)]