31261860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:642

約数の個数: 144

約数和(自身を含む): 111086976

約数和(自身を除く): 79825116

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 577, 602, 630, 645, 774, 860, 903, 1154, 1204, 1260, 1290, 1505, 1548, 1731, 1806, 1935, 2308, 2580, 2709, 2885, 3010, 3462, 3612, 3870, 4039, 4515, 5193, 5418, 5770, 6020, 6924, 7740, 8078, 8655, 9030, 10386, 10836, 11540, 12117, 13545, 16156, 17310, 18060, 20195, 20772, 24234, 24811, 25965, 27090, 34620, 36351, 40390, 48468, 49622, 51930, 54180, 60585, 72702, 74433, 80780, 99244, 103860, 121170, 124055, 145404, 148866, 173677, 181755, 223299, 242340, 248110, 297732, 347354, 363510, 372165, 446598, 496220, 521031, 694708, 727020, 744330, 868385, 893196, 1042062, 1116495, 1488660, 1563093, 1736770, 2084124, 2232990, 2605155, 3126186, 3473540, 4465980, 5210310, 6252372, 7815465, 10420620, 15630930, 31261860]

約数ペア:

[(1, 31261860), (2, 15630930), (3, 10420620), (4, 7815465), (5, 6252372), (6, 5210310), (7, 4465980), (9, 3473540), (10, 3126186), (12, 2605155), (14, 2232990), (15, 2084124), (18, 1736770), (20, 1563093), (21, 1488660), (28, 1116495), (30, 1042062), (35, 893196), (36, 868385), (42, 744330), (43, 727020), (45, 694708), (60, 521031), (63, 496220), (70, 446598), (84, 372165), (86, 363510), (90, 347354), (105, 297732), (126, 248110), (129, 242340), (140, 223299), (172, 181755), (180, 173677), (210, 148866), (215, 145404), (252, 124055), (258, 121170), (301, 103860), (315, 99244), (387, 80780), (420, 74433), (430, 72702), (516, 60585), (577, 54180), (602, 51930), (630, 49622), (645, 48468), (774, 40390), (860, 36351), (903, 34620), (1154, 27090), (1204, 25965), (1260, 24811), (1290, 24234), (1505, 20772), (1548, 20195), (1731, 18060), (1806, 17310), (1935, 16156), (2308, 13545), (2580, 12117), (2709, 11540), (2885, 10836), (3010, 10386), (3462, 9030), (3612, 8655), (3870, 8078), (4039, 7740), (4515, 6924), (5193, 6020), (5418, 5770)]