138173840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{246739}}^1$

素因数の和:246759

約数の個数: 40

約数和(自身を含む): 367149120

約数和(自身を除く): 228975280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 246739, 493478, 986956, 1233695, 1727173, 1973912, 2467390, 3454346, 3947824, 4934780, 6908692, 8635865, 9869560, 13817384, 17271730, 19739120, 27634768, 34543460, 69086920, 138173840]

約数ペア:

[(1, 138173840), (2, 69086920), (4, 34543460), (5, 27634768), (7, 19739120), (8, 17271730), (10, 13817384), (14, 9869560), (16, 8635865), (20, 6908692), (28, 4934780), (35, 3947824), (40, 3454346), (56, 2467390), (70, 1973912), (80, 1727173), (112, 1233695), (140, 986956), (280, 493478), (560, 246739)]