19957860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2843}}^1$

素因数の和:2874

約数の個数: 96

約数和(自身を含む): 66890880

約数和(自身を除く): 46933020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 2843, 3510, 5686, 7020, 8529, 11372, 14215, 17058, 25587, 28430, 34116, 36959, 42645, 51174, 56860, 73918, 76761, 85290, 102348, 110877, 127935, 147836, 153522, 170580, 184795, 221754, 255870, 307044, 332631, 369590, 383805, 443508, 511740, 554385, 665262, 739180, 767610, 997893, 1108770, 1330524, 1535220, 1663155, 1995786, 2217540, 3326310, 3991572, 4989465, 6652620, 9978930, 19957860]

約数ペア:

[(1, 19957860), (2, 9978930), (3, 6652620), (4, 4989465), (5, 3991572), (6, 3326310), (9, 2217540), (10, 1995786), (12, 1663155), (13, 1535220), (15, 1330524), (18, 1108770), (20, 997893), (26, 767610), (27, 739180), (30, 665262), (36, 554385), (39, 511740), (45, 443508), (52, 383805), (54, 369590), (60, 332631), (65, 307044), (78, 255870), (90, 221754), (108, 184795), (117, 170580), (130, 153522), (135, 147836), (156, 127935), (180, 110877), (195, 102348), (234, 85290), (260, 76761), (270, 73918), (351, 56860), (390, 51174), (468, 42645), (540, 36959), (585, 34116), (702, 28430), (780, 25587), (1170, 17058), (1404, 14215), (1755, 11372), (2340, 8529), (2843, 7020), (3510, 5686)]