81532140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19139}}^1$

素因数の和:19222

約数の個数: 48

約数和(自身を含む): 231517440

約数和(自身を除く): 149985300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 19139, 38278, 57417, 76556, 95695, 114834, 191390, 229668, 287085, 382780, 574170, 1148340, 1358869, 2717738, 4076607, 5435476, 6794345, 8153214, 13588690, 16306428, 20383035, 27177380, 40766070, 81532140]

約数ペア:

[(1, 81532140), (2, 40766070), (3, 27177380), (4, 20383035), (5, 16306428), (6, 13588690), (10, 8153214), (12, 6794345), (15, 5435476), (20, 4076607), (30, 2717738), (60, 1358869), (71, 1148340), (142, 574170), (213, 382780), (284, 287085), (355, 229668), (426, 191390), (710, 114834), (852, 95695), (1065, 76556), (1420, 57417), (2130, 38278), (4260, 19139)]