20083760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:286

約数の個数: 80

約数和(自身を含む): 50100960

約数和(自身を除く): 30017200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 73, 76, 80, 95, 146, 152, 181, 190, 292, 304, 362, 365, 380, 584, 724, 730, 760, 905, 1168, 1387, 1448, 1460, 1520, 1810, 2774, 2896, 2920, 3439, 3620, 5548, 5840, 6878, 6935, 7240, 11096, 13213, 13756, 13870, 14480, 17195, 22192, 26426, 27512, 27740, 34390, 52852, 55024, 55480, 66065, 68780, 105704, 110960, 132130, 137560, 211408, 251047, 264260, 275120, 502094, 528520, 1004188, 1057040, 1255235, 2008376, 2510470, 4016752, 5020940, 10041880, 20083760]

約数ペア:

[(1, 20083760), (2, 10041880), (4, 5020940), (5, 4016752), (8, 2510470), (10, 2008376), (16, 1255235), (19, 1057040), (20, 1004188), (38, 528520), (40, 502094), (73, 275120), (76, 264260), (80, 251047), (95, 211408), (146, 137560), (152, 132130), (181, 110960), (190, 105704), (292, 68780), (304, 66065), (362, 55480), (365, 55024), (380, 52852), (584, 34390), (724, 27740), (730, 27512), (760, 26426), (905, 22192), (1168, 17195), (1387, 14480), (1448, 13870), (1460, 13756), (1520, 13213), (1810, 11096), (2774, 7240), (2896, 6935), (2920, 6878), (3439, 5840), (3620, 5548)]