12930640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 32497920

約数和(自身を除く): 19567280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 181, 188, 190, 235, 304, 362, 376, 380, 470, 724, 752, 760, 893, 905, 940, 1448, 1520, 1786, 1810, 1880, 2896, 3439, 3572, 3620, 3760, 4465, 6878, 7144, 7240, 8507, 8930, 13756, 14288, 14480, 17014, 17195, 17860, 27512, 34028, 34390, 35720, 42535, 55024, 68056, 68780, 71440, 85070, 136112, 137560, 161633, 170140, 275120, 323266, 340280, 646532, 680560, 808165, 1293064, 1616330, 2586128, 3232660, 6465320, 12930640]

約数ペア:

[(1, 12930640), (2, 6465320), (4, 3232660), (5, 2586128), (8, 1616330), (10, 1293064), (16, 808165), (19, 680560), (20, 646532), (38, 340280), (40, 323266), (47, 275120), (76, 170140), (80, 161633), (94, 137560), (95, 136112), (152, 85070), (181, 71440), (188, 68780), (190, 68056), (235, 55024), (304, 42535), (362, 35720), (376, 34390), (380, 34028), (470, 27512), (724, 17860), (752, 17195), (760, 17014), (893, 14480), (905, 14288), (940, 13756), (1448, 8930), (1520, 8507), (1786, 7240), (1810, 7144), (1880, 6878), (2896, 4465), (3439, 3760), (3572, 3620)]