19445640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1237}}^1$

素因数の和:1382

約数の個数: 64

約数和(自身を含む): 58829760

約数和(自身を除く): 39384120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1237, 1310, 1572, 1965, 2474, 2620, 3144, 3711, 3930, 4948, 5240, 6185, 7422, 7860, 9896, 12370, 14844, 15720, 18555, 24740, 29688, 37110, 49480, 74220, 148440, 162047, 324094, 486141, 648188, 810235, 972282, 1296376, 1620470, 1944564, 2430705, 3240940, 3889128, 4861410, 6481880, 9722820, 19445640]

約数ペア:

[(1, 19445640), (2, 9722820), (3, 6481880), (4, 4861410), (5, 3889128), (6, 3240940), (8, 2430705), (10, 1944564), (12, 1620470), (15, 1296376), (20, 972282), (24, 810235), (30, 648188), (40, 486141), (60, 324094), (120, 162047), (131, 148440), (262, 74220), (393, 49480), (524, 37110), (655, 29688), (786, 24740), (1048, 18555), (1237, 15720), (1310, 14844), (1572, 12370), (1965, 9896), (2474, 7860), (2620, 7422), (3144, 6185), (3711, 5240), (3930, 4948)]