18815264

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1459}}^1$

素因数の和:1513

約数の個数: 48

約数和(自身を含む): 41207040

約数和(自身を除く): 22391776

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1459, 1612, 2918, 3224, 5836, 6448, 11672, 12896, 18967, 23344, 37934, 45229, 46688, 75868, 90458, 151736, 180916, 303472, 361832, 587977, 606944, 723664, 1175954, 1447328, 2351908, 4703816, 9407632, 18815264]

約数ペア:

[(1, 18815264), (2, 9407632), (4, 4703816), (8, 2351908), (13, 1447328), (16, 1175954), (26, 723664), (31, 606944), (32, 587977), (52, 361832), (62, 303472), (104, 180916), (124, 151736), (208, 90458), (248, 75868), (403, 46688), (416, 45229), (496, 37934), (806, 23344), (992, 18967), (1459, 12896), (1612, 11672), (2918, 6448), (3224, 5836)]