123800920

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{8081}}^1$

素因数の和:8475

約数の個数: 32

約数和(自身を含む): 279313920

約数和(自身を除く): 155513000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 7660, 8081, 15320, 16162, 32324, 40405, 64648, 80810, 161620, 323240, 3095023, 6190046, 12380092, 15475115, 24760184, 30950230, 61900460, 123800920]

約数ペア:

[(1, 123800920), (2, 61900460), (4, 30950230), (5, 24760184), (8, 15475115), (10, 12380092), (20, 6190046), (40, 3095023), (383, 323240), (766, 161620), (1532, 80810), (1915, 64648), (3064, 40405), (3830, 32324), (7660, 16162), (8081, 15320)]