28195020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{7459}}^1$

素因数の和:7484

約数の個数: 96

約数和(自身を含む): 100262400

約数和(自身を除く): 72067380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 7459, 14918, 22377, 29836, 37295, 44754, 52213, 67131, 74590, 89508, 104426, 111885, 134262, 149180, 156639, 201393, 208852, 223770, 261065, 268524, 313278, 335655, 402786, 447540, 469917, 522130, 626556, 671310, 783195, 805572, 939834, 1006965, 1044260, 1342620, 1409751, 1566390, 1879668, 2013930, 2349585, 2819502, 3132780, 4027860, 4699170, 5639004, 7048755, 9398340, 14097510, 28195020]

約数ペア:

[(1, 28195020), (2, 14097510), (3, 9398340), (4, 7048755), (5, 5639004), (6, 4699170), (7, 4027860), (9, 3132780), (10, 2819502), (12, 2349585), (14, 2013930), (15, 1879668), (18, 1566390), (20, 1409751), (21, 1342620), (27, 1044260), (28, 1006965), (30, 939834), (35, 805572), (36, 783195), (42, 671310), (45, 626556), (54, 522130), (60, 469917), (63, 447540), (70, 402786), (84, 335655), (90, 313278), (105, 268524), (108, 261065), (126, 223770), (135, 208852), (140, 201393), (180, 156639), (189, 149180), (210, 134262), (252, 111885), (270, 104426), (315, 89508), (378, 74590), (420, 67131), (540, 52213), (630, 44754), (756, 37295), (945, 29836), (1260, 22377), (1890, 14918), (3780, 7459)]