20154272

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 41291712

約数和(自身を除く): 21137440

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 97, 151, 172, 194, 302, 344, 388, 604, 688, 776, 1208, 1376, 1552, 2416, 3104, 4171, 4832, 6493, 8342, 12986, 14647, 16684, 25972, 29294, 33368, 51944, 58588, 66736, 103888, 117176, 133472, 207776, 234352, 468704, 629821, 1259642, 2519284, 5038568, 10077136, 20154272]

約数ペア:

[(1, 20154272), (2, 10077136), (4, 5038568), (8, 2519284), (16, 1259642), (32, 629821), (43, 468704), (86, 234352), (97, 207776), (151, 133472), (172, 117176), (194, 103888), (302, 66736), (344, 58588), (388, 51944), (604, 33368), (688, 29294), (776, 25972), (1208, 16684), (1376, 14647), (1552, 12986), (2416, 8342), (3104, 6493), (4171, 4832)]