774990080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19531}}^1$

素因数の和:19583

約数の個数: 72

約数和(自身を含む): 1916323584

約数和(自身を除く): 1141333504

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, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19531, 19840, 39062, 39680, 78124, 97655, 156248, 195310, 312496, 390620, 605461, 624992, 781240, 1210922, 1249984, 1562480, 2421844, 2499968, 3027305, 3124960, 4843688, 4999936, 6054610, 6249920, 9687376, 12109220, 12499840, 19374752, 24218440, 24999680, 38749504, 48436880, 77499008, 96873760, 154998016, 193747520, 387495040, 774990080]

約数ペア:

[(1, 774990080), (2, 387495040), (4, 193747520), (5, 154998016), (8, 96873760), (10, 77499008), (16, 48436880), (20, 38749504), (31, 24999680), (32, 24218440), (40, 19374752), (62, 12499840), (64, 12109220), (80, 9687376), (124, 6249920), (128, 6054610), (155, 4999936), (160, 4843688), (248, 3124960), (256, 3027305), (310, 2499968), (320, 2421844), (496, 1562480), (620, 1249984), (640, 1210922), (992, 781240), (1240, 624992), (1280, 605461), (1984, 390620), (2480, 312496), (3968, 195310), (4960, 156248), (7936, 97655), (9920, 78124), (19531, 39680), (19840, 39062)]