19965690

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{157}}^2$

素因数の和:333

約数の個数: 60

約数和(自身を含む): 54029646

約数和(自身を除く): 34063956

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 157, 162, 270, 314, 405, 471, 785, 810, 942, 1413, 1570, 2355, 2826, 4239, 4710, 7065, 8478, 12717, 14130, 21195, 24649, 25434, 42390, 49298, 63585, 73947, 123245, 127170, 147894, 221841, 246490, 369735, 443682, 665523, 739470, 1109205, 1331046, 1996569, 2218410, 3327615, 3993138, 6655230, 9982845, 19965690]

約数ペア:

[(1, 19965690), (2, 9982845), (3, 6655230), (5, 3993138), (6, 3327615), (9, 2218410), (10, 1996569), (15, 1331046), (18, 1109205), (27, 739470), (30, 665523), (45, 443682), (54, 369735), (81, 246490), (90, 221841), (135, 147894), (157, 127170), (162, 123245), (270, 73947), (314, 63585), (405, 49298), (471, 42390), (785, 25434), (810, 24649), (942, 21195), (1413, 14130), (1570, 12717), (2355, 8478), (2826, 7065), (4239, 4710)]