991948912

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2503}}^1$

素因数の和:2606

約数の個数: 80

約数和(自身を含む): 2146148352

約数和(自身を除く): 1154199440

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 47, 62, 68, 94, 124, 136, 188, 248, 272, 376, 496, 527, 752, 799, 1054, 1457, 1598, 2108, 2503, 2914, 3196, 4216, 5006, 5828, 6392, 8432, 10012, 11656, 12784, 20024, 23312, 24769, 40048, 42551, 49538, 77593, 85102, 99076, 117641, 155186, 170204, 198152, 235282, 310372, 340408, 396304, 470564, 620744, 680816, 941128, 1241488, 1319081, 1882256, 1999897, 2638162, 3646871, 3999794, 5276324, 7293742, 7999588, 10552648, 14587484, 15999176, 21105296, 29174968, 31998352, 58349936, 61996807, 123993614, 247987228, 495974456, 991948912]

約数ペア:

[(1, 991948912), (2, 495974456), (4, 247987228), (8, 123993614), (16, 61996807), (17, 58349936), (31, 31998352), (34, 29174968), (47, 21105296), (62, 15999176), (68, 14587484), (94, 10552648), (124, 7999588), (136, 7293742), (188, 5276324), (248, 3999794), (272, 3646871), (376, 2638162), (496, 1999897), (527, 1882256), (752, 1319081), (799, 1241488), (1054, 941128), (1457, 680816), (1598, 620744), (2108, 470564), (2503, 396304), (2914, 340408), (3196, 310372), (4216, 235282), (5006, 198152), (5828, 170204), (6392, 155186), (8432, 117641), (10012, 99076), (11656, 85102), (12784, 77593), (20024, 49538), (23312, 42551), (24769, 40048)]