81809406

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 228096000

約数和(自身を除く): 146286594

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 29, 34, 42, 51, 54, 58, 63, 87, 102, 119, 126, 153, 174, 189, 203, 238, 261, 306, 357, 378, 406, 439, 459, 493, 522, 609, 714, 783, 878, 918, 986, 1071, 1218, 1317, 1479, 1566, 1827, 2142, 2634, 2958, 3073, 3213, 3451, 3654, 3951, 4437, 5481, 6146, 6426, 6902, 7463, 7902, 8874, 9219, 10353, 10962, 11853, 12731, 13311, 14926, 18438, 20706, 22389, 23706, 25462, 26622, 27657, 31059, 38193, 44778, 52241, 55314, 62118, 67167, 76386, 82971, 89117, 93177, 104482, 114579, 134334, 156723, 165942, 178234, 186354, 201501, 216427, 229158, 267351, 313446, 343737, 403002, 432854, 470169, 534702, 649281, 687474, 802053, 940338, 1298562, 1410507, 1514989, 1604106, 1947843, 2406159, 2821014, 3029978, 3895686, 4544967, 4812318, 5843529, 9089934, 11687058, 13634901, 27269802, 40904703, 81809406]

約数ペア:

[(1, 81809406), (2, 40904703), (3, 27269802), (6, 13634901), (7, 11687058), (9, 9089934), (14, 5843529), (17, 4812318), (18, 4544967), (21, 3895686), (27, 3029978), (29, 2821014), (34, 2406159), (42, 1947843), (51, 1604106), (54, 1514989), (58, 1410507), (63, 1298562), (87, 940338), (102, 802053), (119, 687474), (126, 649281), (153, 534702), (174, 470169), (189, 432854), (203, 403002), (238, 343737), (261, 313446), (306, 267351), (357, 229158), (378, 216427), (406, 201501), (439, 186354), (459, 178234), (493, 165942), (522, 156723), (609, 134334), (714, 114579), (783, 104482), (878, 93177), (918, 89117), (986, 82971), (1071, 76386), (1218, 67167), (1317, 62118), (1479, 55314), (1566, 52241), (1827, 44778), (2142, 38193), (2634, 31059), (2958, 27657), (3073, 26622), (3213, 25462), (3451, 23706), (3654, 22389), (3951, 20706), (4437, 18438), (5481, 14926), (6146, 13311), (6426, 12731), (6902, 11853), (7463, 10962), (7902, 10353), (8874, 9219)]