4955000000

素因数分解:

$2^6\times 5^7\times {\mathrm{991}}^1$

素因数の和:1038

約数の個数: 112

約数和(自身を含む): 12303093504

約数和(自身を除く): 7348093504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 991, 1000, 1250, 1600, 1982, 2000, 2500, 3125, 3964, 4000, 4955, 5000, 6250, 7928, 8000, 9910, 10000, 12500, 15625, 15856, 19820, 20000, 24775, 25000, 31250, 31712, 39640, 40000, 49550, 50000, 62500, 63424, 78125, 79280, 99100, 100000, 123875, 125000, 156250, 158560, 198200, 200000, 247750, 250000, 312500, 317120, 396400, 495500, 500000, 619375, 625000, 792800, 991000, 1000000, 1238750, 1250000, 1585600, 1982000, 2477500, 2500000, 3096875, 3964000, 4955000, 5000000, 6193750, 7928000, 9910000, 12387500, 15484375, 19820000, 24775000, 30968750, 39640000, 49550000, 61937500, 77421875, 99100000, 123875000, 154843750, 198200000, 247750000, 309687500, 495500000, 619375000, 991000000, 1238750000, 2477500000, 4955000000]

約数ペア:

[(1, 4955000000), (2, 2477500000), (4, 1238750000), (5, 991000000), (8, 619375000), (10, 495500000), (16, 309687500), (20, 247750000), (25, 198200000), (32, 154843750), (40, 123875000), (50, 99100000), (64, 77421875), (80, 61937500), (100, 49550000), (125, 39640000), (160, 30968750), (200, 24775000), (250, 19820000), (320, 15484375), (400, 12387500), (500, 9910000), (625, 7928000), (800, 6193750), (991, 5000000), (1000, 4955000), (1250, 3964000), (1600, 3096875), (1982, 2500000), (2000, 2477500), (2500, 1982000), (3125, 1585600), (3964, 1250000), (4000, 1238750), (4955, 1000000), (5000, 991000), (6250, 792800), (7928, 625000), (8000, 619375), (9910, 500000), (10000, 495500), (12500, 396400), (15625, 317120), (15856, 312500), (19820, 250000), (20000, 247750), (24775, 200000), (25000, 198200), (31250, 158560), (31712, 156250), (39640, 125000), (40000, 123875), (49550, 100000), (50000, 99100), (62500, 79280), (63424, 78125)]