28136520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{78157}}^1$

素因数の和:78174

約数の個数: 48

約数和(自身を含む): 91444860

約数和(自身を除く): 63308340

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, 78157, 156314, 234471, 312628, 390785, 468942, 625256, 703413, 781570, 937884, 1172355, 1406826, 1563140, 1875768, 2344710, 2813652, 3126280, 3517065, 4689420, 5627304, 7034130, 9378840, 14068260, 28136520]

約数ペア:

[(1, 28136520), (2, 14068260), (3, 9378840), (4, 7034130), (5, 5627304), (6, 4689420), (8, 3517065), (9, 3126280), (10, 2813652), (12, 2344710), (15, 1875768), (18, 1563140), (20, 1406826), (24, 1172355), (30, 937884), (36, 781570), (40, 703413), (45, 625256), (60, 468942), (72, 390785), (90, 312628), (120, 234471), (180, 156314), (360, 78157)]