40808680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:754

約数の個数: 64

約数和(自身を含む): 100958400

約数和(自身を除く): 60149720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 326, 440, 569, 652, 815, 1138, 1304, 1630, 1793, 2276, 2845, 3260, 3586, 4552, 5690, 6259, 6520, 7172, 8965, 11380, 12518, 14344, 17930, 22760, 25036, 31295, 35860, 50072, 62590, 71720, 92747, 125180, 185494, 250360, 370988, 463735, 741976, 927470, 1020217, 1854940, 2040434, 3709880, 4080868, 5101085, 8161736, 10202170, 20404340, 40808680]

約数ペア:

[(1, 40808680), (2, 20404340), (4, 10202170), (5, 8161736), (8, 5101085), (10, 4080868), (11, 3709880), (20, 2040434), (22, 1854940), (40, 1020217), (44, 927470), (55, 741976), (88, 463735), (110, 370988), (163, 250360), (220, 185494), (326, 125180), (440, 92747), (569, 71720), (652, 62590), (815, 50072), (1138, 35860), (1304, 31295), (1630, 25036), (1793, 22760), (2276, 17930), (2845, 14344), (3260, 12518), (3586, 11380), (4552, 8965), (5690, 7172), (6259, 6520)]