818457040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{823}}^1$

素因数の和:1268

約数の個数: 80

約数和(自身を含む): 1971588096

約数和(自身を除く): 1153131056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 401, 496, 620, 802, 823, 1240, 1604, 1646, 2005, 2480, 3208, 3292, 4010, 4115, 6416, 6584, 8020, 8230, 12431, 13168, 16040, 16460, 24862, 25513, 32080, 32920, 49724, 51026, 62155, 65840, 99448, 102052, 124310, 127565, 198896, 204104, 248620, 255130, 330023, 408208, 497240, 510260, 660046, 994480, 1020520, 1320092, 1650115, 2041040, 2640184, 3300230, 5280368, 6600460, 10230713, 13200920, 20461426, 26401840, 40922852, 51153565, 81845704, 102307130, 163691408, 204614260, 409228520, 818457040]

約数ペア:

[(1, 818457040), (2, 409228520), (4, 204614260), (5, 163691408), (8, 102307130), (10, 81845704), (16, 51153565), (20, 40922852), (31, 26401840), (40, 20461426), (62, 13200920), (80, 10230713), (124, 6600460), (155, 5280368), (248, 3300230), (310, 2640184), (401, 2041040), (496, 1650115), (620, 1320092), (802, 1020520), (823, 994480), (1240, 660046), (1604, 510260), (1646, 497240), (2005, 408208), (2480, 330023), (3208, 255130), (3292, 248620), (4010, 204104), (4115, 198896), (6416, 127565), (6584, 124310), (8020, 102052), (8230, 99448), (12431, 65840), (13168, 62155), (16040, 51026), (16460, 49724), (24862, 32920), (25513, 32080)]