388120000

素因数分解:

$2^6\times 5^4\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:376

約数の個数: 140

約数和(自身を含む): 996630976

約数和(自身を除く): 608510976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 155, 160, 200, 248, 250, 310, 313, 320, 400, 496, 500, 620, 625, 626, 775, 800, 992, 1000, 1240, 1250, 1252, 1550, 1565, 1600, 1984, 2000, 2480, 2500, 2504, 3100, 3130, 3875, 4000, 4960, 5000, 5008, 6200, 6260, 7750, 7825, 8000, 9703, 9920, 10000, 10016, 12400, 12520, 15500, 15650, 19375, 19406, 20000, 20032, 24800, 25040, 31000, 31300, 38750, 38812, 39125, 40000, 48515, 49600, 50080, 62000, 62600, 77500, 77624, 78250, 97030, 100160, 124000, 125200, 155000, 155248, 156500, 194060, 195625, 242575, 248000, 250400, 310000, 310496, 313000, 388120, 391250, 485150, 500800, 620000, 620992, 626000, 776240, 782500, 970300, 1212875, 1240000, 1252000, 1552480, 1565000, 1940600, 2425750, 2504000, 3104960, 3130000, 3881200, 4851500, 6064375, 6260000, 7762400, 9703000, 12128750, 12520000, 15524800, 19406000, 24257500, 38812000, 48515000, 77624000, 97030000, 194060000, 388120000]

約数ペア:

[(1, 388120000), (2, 194060000), (4, 97030000), (5, 77624000), (8, 48515000), (10, 38812000), (16, 24257500), (20, 19406000), (25, 15524800), (31, 12520000), (32, 12128750), (40, 9703000), (50, 7762400), (62, 6260000), (64, 6064375), (80, 4851500), (100, 3881200), (124, 3130000), (125, 3104960), (155, 2504000), (160, 2425750), (200, 1940600), (248, 1565000), (250, 1552480), (310, 1252000), (313, 1240000), (320, 1212875), (400, 970300), (496, 782500), (500, 776240), (620, 626000), (625, 620992), (626, 620000), (775, 500800), (800, 485150), (992, 391250), (1000, 388120), (1240, 313000), (1250, 310496), (1252, 310000), (1550, 250400), (1565, 248000), (1600, 242575), (1984, 195625), (2000, 194060), (2480, 156500), (2500, 155248), (2504, 155000), (3100, 125200), (3130, 124000), (3875, 100160), (4000, 97030), (4960, 78250), (5000, 77624), (5008, 77500), (6200, 62600), (6260, 62000), (7750, 50080), (7825, 49600), (8000, 48515), (9703, 40000), (9920, 39125), (10000, 38812), (10016, 38750), (12400, 31300), (12520, 31000), (15500, 25040), (15650, 24800), (19375, 20032), (19406, 20000)]