15661947856

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{277}}^1\times {\mathrm{641}}^1$

素因数の和:1112

約数の個数: 80

約数和(自身を含む): 31536709200

約数和(自身を除く): 15874761344

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 149, 277, 296, 298, 554, 592, 596, 641, 1108, 1192, 1282, 2216, 2384, 2564, 4432, 5128, 5513, 10249, 10256, 11026, 20498, 22052, 23717, 40996, 41273, 44104, 47434, 81992, 82546, 88208, 94868, 95509, 163984, 165092, 177557, 189736, 191018, 330184, 355114, 379472, 382036, 660368, 710228, 764072, 1420456, 1527101, 1528144, 2840912, 3054202, 3533833, 6108404, 6569609, 7067666, 12216808, 13139218, 14135332, 24433616, 26278436, 26455993, 28270664, 52556872, 52911986, 56541328, 105113744, 105823972, 211647944, 423295888, 978871741, 1957743482, 3915486964, 7830973928, 15661947856]

約数ペア:

[(1, 15661947856), (2, 7830973928), (4, 3915486964), (8, 1957743482), (16, 978871741), (37, 423295888), (74, 211647944), (148, 105823972), (149, 105113744), (277, 56541328), (296, 52911986), (298, 52556872), (554, 28270664), (592, 26455993), (596, 26278436), (641, 24433616), (1108, 14135332), (1192, 13139218), (1282, 12216808), (2216, 7067666), (2384, 6569609), (2564, 6108404), (4432, 3533833), (5128, 3054202), (5513, 2840912), (10249, 1528144), (10256, 1527101), (11026, 1420456), (20498, 764072), (22052, 710228), (23717, 660368), (40996, 382036), (41273, 379472), (44104, 355114), (47434, 330184), (81992, 191018), (82546, 189736), (88208, 177557), (94868, 165092), (95509, 163984)]