197913920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:400

約数の個数: 112

約数和(自身を含む): 495092736

約数和(自身を除く): 297178816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 124, 142, 155, 160, 248, 281, 284, 310, 320, 355, 496, 562, 568, 620, 710, 992, 1124, 1136, 1240, 1405, 1420, 1984, 2201, 2248, 2272, 2480, 2810, 2840, 4402, 4496, 4544, 4960, 5620, 5680, 8711, 8804, 8992, 9920, 11005, 11240, 11360, 17422, 17608, 17984, 19951, 22010, 22480, 22720, 34844, 35216, 39902, 43555, 44020, 44960, 69688, 70432, 79804, 87110, 88040, 89920, 99755, 139376, 140864, 159608, 174220, 176080, 199510, 278752, 319216, 348440, 352160, 399020, 557504, 618481, 638432, 696880, 704320, 798040, 1236962, 1276864, 1393760, 1596080, 2473924, 2787520, 3092405, 3192160, 4947848, 6184810, 6384320, 9895696, 12369620, 19791392, 24739240, 39582784, 49478480, 98956960, 197913920]

約数ペア:

[(1, 197913920), (2, 98956960), (4, 49478480), (5, 39582784), (8, 24739240), (10, 19791392), (16, 12369620), (20, 9895696), (31, 6384320), (32, 6184810), (40, 4947848), (62, 3192160), (64, 3092405), (71, 2787520), (80, 2473924), (124, 1596080), (142, 1393760), (155, 1276864), (160, 1236962), (248, 798040), (281, 704320), (284, 696880), (310, 638432), (320, 618481), (355, 557504), (496, 399020), (562, 352160), (568, 348440), (620, 319216), (710, 278752), (992, 199510), (1124, 176080), (1136, 174220), (1240, 159608), (1405, 140864), (1420, 139376), (1984, 99755), (2201, 89920), (2248, 88040), (2272, 87110), (2480, 79804), (2810, 70432), (2840, 69688), (4402, 44960), (4496, 44020), (4544, 43555), (4960, 39902), (5620, 35216), (5680, 34844), (8711, 22720), (8804, 22480), (8992, 22010), (9920, 19951), (11005, 17984), (11240, 17608), (11360, 17422)]