40720140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5261}}^1$

素因数の和:5319

約数の個数: 72

約数和(自身を含む): 126414288

約数和(自身を除く): 85694148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 5261, 7740, 10522, 15783, 21044, 26305, 31566, 47349, 52610, 63132, 78915, 94698, 105220, 157830, 189396, 226223, 236745, 315660, 452446, 473490, 678669, 904892, 946980, 1131115, 1357338, 2036007, 2262230, 2714676, 3393345, 4072014, 4524460, 6786690, 8144028, 10180035, 13573380, 20360070, 40720140]

約数ペア:

[(1, 40720140), (2, 20360070), (3, 13573380), (4, 10180035), (5, 8144028), (6, 6786690), (9, 4524460), (10, 4072014), (12, 3393345), (15, 2714676), (18, 2262230), (20, 2036007), (30, 1357338), (36, 1131115), (43, 946980), (45, 904892), (60, 678669), (86, 473490), (90, 452446), (129, 315660), (172, 236745), (180, 226223), (215, 189396), (258, 157830), (387, 105220), (430, 94698), (516, 78915), (645, 63132), (774, 52610), (860, 47349), (1290, 31566), (1548, 26305), (1935, 21044), (2580, 15783), (3870, 10522), (5261, 7740)]