122891720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{438899}}^1$

素因数の和:438917

約数の個数: 32

約数和(自身を含む): 316008000

約数和(自身を除く): 193116280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 438899, 877798, 1755596, 2194495, 3072293, 3511192, 4388990, 6144586, 8777980, 12289172, 15361465, 17555960, 24578344, 30722930, 61445860, 122891720]

約数ペア:

[(1, 122891720), (2, 61445860), (4, 30722930), (5, 24578344), (7, 17555960), (8, 15361465), (10, 12289172), (14, 8777980), (20, 6144586), (28, 4388990), (35, 3511192), (40, 3072293), (56, 2194495), (70, 1755596), (140, 877798), (280, 438899)]