20165507928

素因数分解:

$2^3\times 3^4\times {\mathrm{389}}^1\times {\mathrm{79999}}^1$

素因数の和:80406

約数の個数: 80

約数和(自身を含む): 56628000000

約数和(自身を除く): 36462492072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 389, 648, 778, 1167, 1556, 2334, 3112, 3501, 4668, 7002, 9336, 10503, 14004, 21006, 28008, 31509, 42012, 63018, 79999, 84024, 126036, 159998, 239997, 252072, 319996, 479994, 639992, 719991, 959988, 1439982, 1919976, 2159973, 2879964, 4319946, 5759928, 6479919, 8639892, 12959838, 17279784, 25919676, 31119611, 51839352, 62239222, 93358833, 124478444, 186717666, 248956888, 280076499, 373435332, 560152998, 746870664, 840229497, 1120305996, 1680458994, 2240611992, 2520688491, 3360917988, 5041376982, 6721835976, 10082753964, 20165507928]

約数ペア:

[(1, 20165507928), (2, 10082753964), (3, 6721835976), (4, 5041376982), (6, 3360917988), (8, 2520688491), (9, 2240611992), (12, 1680458994), (18, 1120305996), (24, 840229497), (27, 746870664), (36, 560152998), (54, 373435332), (72, 280076499), (81, 248956888), (108, 186717666), (162, 124478444), (216, 93358833), (324, 62239222), (389, 51839352), (648, 31119611), (778, 25919676), (1167, 17279784), (1556, 12959838), (2334, 8639892), (3112, 6479919), (3501, 5759928), (4668, 4319946), (7002, 2879964), (9336, 2159973), (10503, 1919976), (14004, 1439982), (21006, 959988), (28008, 719991), (31509, 639992), (42012, 479994), (63018, 319996), (79999, 252072), (84024, 239997), (126036, 159998)]