40722020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{937}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 89350128

約数和(自身を除く): 48628108

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 530, 820, 937, 1060, 1874, 2173, 3748, 4346, 4685, 8692, 9370, 10865, 18740, 21730, 38417, 43460, 49661, 76834, 99322, 153668, 192085, 198644, 248305, 384170, 496610, 768340, 993220, 2036101, 4072202, 8144404, 10180505, 20361010, 40722020]

約数ペア:

[(1, 40722020), (2, 20361010), (4, 10180505), (5, 8144404), (10, 4072202), (20, 2036101), (41, 993220), (53, 768340), (82, 496610), (106, 384170), (164, 248305), (205, 198644), (212, 192085), (265, 153668), (410, 99322), (530, 76834), (820, 49661), (937, 43460), (1060, 38417), (1874, 21730), (2173, 18740), (3748, 10865), (4346, 9370), (4685, 8692)]