19999704

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 53568000

約数和(自身を除く): 33568296

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 61, 76, 114, 122, 152, 183, 228, 244, 366, 456, 488, 719, 732, 1159, 1438, 1464, 2157, 2318, 2876, 3477, 4314, 4636, 5752, 6954, 8628, 9272, 13661, 13908, 17256, 27322, 27816, 40983, 43859, 54644, 81966, 87718, 109288, 131577, 163932, 175436, 263154, 327864, 350872, 526308, 833321, 1052616, 1666642, 2499963, 3333284, 4999926, 6666568, 9999852, 19999704]

約数ペア:

[(1, 19999704), (2, 9999852), (3, 6666568), (4, 4999926), (6, 3333284), (8, 2499963), (12, 1666642), (19, 1052616), (24, 833321), (38, 526308), (57, 350872), (61, 327864), (76, 263154), (114, 175436), (122, 163932), (152, 131577), (183, 109288), (228, 87718), (244, 81966), (366, 54644), (456, 43859), (488, 40983), (719, 27816), (732, 27322), (1159, 17256), (1438, 13908), (1464, 13661), (2157, 9272), (2318, 8628), (2876, 6954), (3477, 5752), (4314, 4636)]