123453020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{2153}}^1$

素因数の和:2270

約数の個数: 48

約数和(自身を含む): 269232768

約数和(自身を除く): 145779748

約数列:

[1, 2, 4, 5, 10, 20, 47, 61, 94, 122, 188, 235, 244, 305, 470, 610, 940, 1220, 2153, 2867, 4306, 5734, 8612, 10765, 11468, 14335, 21530, 28670, 43060, 57340, 101191, 131333, 202382, 262666, 404764, 505955, 525332, 656665, 1011910, 1313330, 2023820, 2626660, 6172651, 12345302, 24690604, 30863255, 61726510, 123453020]

約数ペア:

[(1, 123453020), (2, 61726510), (4, 30863255), (5, 24690604), (10, 12345302), (20, 6172651), (47, 2626660), (61, 2023820), (94, 1313330), (122, 1011910), (188, 656665), (235, 525332), (244, 505955), (305, 404764), (470, 262666), (610, 202382), (940, 131333), (1220, 101191), (2153, 57340), (2867, 43060), (4306, 28670), (5734, 21530), (8612, 14335), (10765, 11468)]