9919682560

素因数分解:

$2^{11}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31249}}^1$

素因数の和:31307

約数の個数: 96

約数和(自身を含む): 24570000000

約数和(自身を除く): 14650317440

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, 1024, 1240, 1280, 1984, 2048, 2480, 2560, 3968, 4960, 5120, 7936, 9920, 10240, 15872, 19840, 31249, 31744, 39680, 62498, 63488, 79360, 124996, 156245, 158720, 249992, 312490, 317440, 499984, 624980, 968719, 999968, 1249960, 1937438, 1999936, 2499920, 3874876, 3999872, 4843595, 4999840, 7749752, 7999744, 9687190, 9999680, 15499504, 15999488, 19374380, 19999360, 30999008, 31998976, 38748760, 39998720, 61998016, 63997952, 77497520, 79997440, 123996032, 154995040, 159994880, 247992064, 309990080, 319989760, 495984128, 619980160, 991968256, 1239960320, 1983936512, 2479920640, 4959841280, 9919682560]

約数ペア:

[(1, 9919682560), (2, 4959841280), (4, 2479920640), (5, 1983936512), (8, 1239960320), (10, 991968256), (16, 619980160), (20, 495984128), (31, 319989760), (32, 309990080), (40, 247992064), (62, 159994880), (64, 154995040), (80, 123996032), (124, 79997440), (128, 77497520), (155, 63997952), (160, 61998016), (248, 39998720), (256, 38748760), (310, 31998976), (320, 30999008), (496, 19999360), (512, 19374380), (620, 15999488), (640, 15499504), (992, 9999680), (1024, 9687190), (1240, 7999744), (1280, 7749752), (1984, 4999840), (2048, 4843595), (2480, 3999872), (2560, 3874876), (3968, 2499920), (4960, 1999936), (5120, 1937438), (7936, 1249960), (9920, 999968), (10240, 968719), (15872, 624980), (19840, 499984), (31249, 317440), (31744, 312490), (39680, 249992), (62498, 158720), (63488, 156245), (79360, 124996)]