12721070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 26127360

約数和(自身を除く): 13406290

約数列:

[1, 2, 5, 10, 19, 23, 38, 41, 46, 71, 82, 95, 115, 142, 190, 205, 230, 355, 410, 437, 710, 779, 874, 943, 1349, 1558, 1633, 1886, 2185, 2698, 2911, 3266, 3895, 4370, 4715, 5822, 6745, 7790, 8165, 9430, 13490, 14555, 16330, 17917, 29110, 31027, 35834, 55309, 62054, 66953, 89585, 110618, 133906, 155135, 179170, 276545, 310270, 334765, 553090, 669530, 1272107, 2544214, 6360535, 12721070]

約数ペア:

[(1, 12721070), (2, 6360535), (5, 2544214), (10, 1272107), (19, 669530), (23, 553090), (38, 334765), (41, 310270), (46, 276545), (71, 179170), (82, 155135), (95, 133906), (115, 110618), (142, 89585), (190, 66953), (205, 62054), (230, 55309), (355, 35834), (410, 31027), (437, 29110), (710, 17917), (779, 16330), (874, 14555), (943, 13490), (1349, 9430), (1558, 8165), (1633, 7790), (1886, 6745), (2185, 5822), (2698, 4715), (2911, 4370), (3266, 3895)]