15989428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 36072960

約数和(自身を除く): 20083532

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 109, 124, 169, 182, 217, 218, 338, 364, 403, 434, 436, 676, 763, 806, 868, 1183, 1417, 1526, 1612, 2366, 2821, 2834, 3052, 3379, 4732, 5239, 5642, 5668, 6758, 9919, 10478, 11284, 13516, 18421, 19838, 20956, 23653, 36673, 36842, 39676, 43927, 47306, 73346, 73684, 87854, 94612, 128947, 146692, 175708, 257894, 307489, 515788, 571051, 614978, 1142102, 1229956, 2284204, 3997357, 7994714, 15989428]

約数ペア:

[(1, 15989428), (2, 7994714), (4, 3997357), (7, 2284204), (13, 1229956), (14, 1142102), (26, 614978), (28, 571051), (31, 515788), (52, 307489), (62, 257894), (91, 175708), (109, 146692), (124, 128947), (169, 94612), (182, 87854), (217, 73684), (218, 73346), (338, 47306), (364, 43927), (403, 39676), (434, 36842), (436, 36673), (676, 23653), (763, 20956), (806, 19838), (868, 18421), (1183, 13516), (1417, 11284), (1526, 10478), (1612, 9919), (2366, 6758), (2821, 5668), (2834, 5642), (3052, 5239), (3379, 4732)]