99879680

素因数分解:

$2^8\times 5^1\times {\mathrm{78031}}^1$

素因数の和:78052

約数の個数: 36

約数和(自身を含む): 239246112

約数和(自身を除く): 139366432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 78031, 156062, 312124, 390155, 624248, 780310, 1248496, 1560620, 2496992, 3121240, 4993984, 6242480, 9987968, 12484960, 19975936, 24969920, 49939840, 99879680]

約数ペア:

[(1, 99879680), (2, 49939840), (4, 24969920), (5, 19975936), (8, 12484960), (10, 9987968), (16, 6242480), (20, 4993984), (32, 3121240), (40, 2496992), (64, 1560620), (80, 1248496), (128, 780310), (160, 624248), (256, 390155), (320, 312124), (640, 156062), (1280, 78031)]