31723287040

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{399739}}^1$

素因数の和:399793

約数の個数: 80

約数和(自身を含む): 78515331840

約数和(自身を除く): 46792044800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 15872, 19840, 39680, 79360, 399739, 799478, 1598956, 1998695, 3197912, 3997390, 6395824, 7994780, 12391909, 12791648, 15989560, 24783818, 25583296, 31979120, 49567636, 51166592, 61959545, 63958240, 99135272, 102333184, 123919090, 127916480, 198270544, 204666368, 247838180, 255832960, 396541088, 495676360, 511665920, 793082176, 991352720, 1023331840, 1586164352, 1982705440, 3172328704, 3965410880, 6344657408, 7930821760, 15861643520, 31723287040]

約数ペア:

[(1, 31723287040), (2, 15861643520), (4, 7930821760), (5, 6344657408), (8, 3965410880), (10, 3172328704), (16, 1982705440), (20, 1586164352), (31, 1023331840), (32, 991352720), (40, 793082176), (62, 511665920), (64, 495676360), (80, 396541088), (124, 255832960), (128, 247838180), (155, 204666368), (160, 198270544), (248, 127916480), (256, 123919090), (310, 102333184), (320, 99135272), (496, 63958240), (512, 61959545), (620, 51166592), (640, 49567636), (992, 31979120), (1240, 25583296), (1280, 24783818), (1984, 15989560), (2480, 12791648), (2560, 12391909), (3968, 7994780), (4960, 6395824), (7936, 3997390), (9920, 3197912), (15872, 1998695), (19840, 1598956), (39680, 799478), (79360, 399739)]