81809040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4801}}^1$

素因数の和:4888

約数の個数: 80

約数和(自身を含む): 257233536

約数和(自身を除く): 175424496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 2130, 2840, 3408, 4260, 4801, 5680, 8520, 9602, 14403, 17040, 19204, 24005, 28806, 38408, 48010, 57612, 72015, 76816, 96020, 115224, 144030, 192040, 230448, 288060, 340871, 384080, 576120, 681742, 1022613, 1152240, 1363484, 1704355, 2045226, 2726968, 3408710, 4090452, 5113065, 5453936, 6817420, 8180904, 10226130, 13634840, 16361808, 20452260, 27269680, 40904520, 81809040]

約数ペア:

[(1, 81809040), (2, 40904520), (3, 27269680), (4, 20452260), (5, 16361808), (6, 13634840), (8, 10226130), (10, 8180904), (12, 6817420), (15, 5453936), (16, 5113065), (20, 4090452), (24, 3408710), (30, 2726968), (40, 2045226), (48, 1704355), (60, 1363484), (71, 1152240), (80, 1022613), (120, 681742), (142, 576120), (213, 384080), (240, 340871), (284, 288060), (355, 230448), (426, 192040), (568, 144030), (710, 115224), (852, 96020), (1065, 76816), (1136, 72015), (1420, 57612), (1704, 48010), (2130, 38408), (2840, 28806), (3408, 24005), (4260, 19204), (4801, 17040), (5680, 14403), (8520, 9602)]