28820340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^2$

素因数の和:143

約数の個数: 144

約数和(自身を含む): 96196800

約数和(自身を除く): 67376460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 53, 54, 57, 60, 76, 90, 95, 106, 108, 114, 135, 159, 171, 180, 190, 212, 228, 265, 270, 285, 318, 342, 380, 477, 513, 530, 540, 570, 636, 684, 795, 855, 954, 1007, 1026, 1060, 1140, 1431, 1590, 1710, 1908, 2014, 2052, 2385, 2565, 2809, 2862, 3021, 3180, 3420, 4028, 4770, 5035, 5130, 5618, 5724, 6042, 7155, 8427, 9063, 9540, 10070, 10260, 11236, 12084, 14045, 14310, 15105, 16854, 18126, 20140, 25281, 27189, 28090, 28620, 30210, 33708, 36252, 42135, 45315, 50562, 53371, 54378, 56180, 60420, 75843, 84270, 90630, 101124, 106742, 108756, 126405, 135945, 151686, 160113, 168540, 181260, 213484, 252810, 266855, 271890, 303372, 320226, 379215, 480339, 505620, 533710, 543780, 640452, 758430, 800565, 960678, 1067420, 1441017, 1516860, 1601130, 1921356, 2401695, 2882034, 3202260, 4803390, 5764068, 7205085, 9606780, 14410170, 28820340]

約数ペア:

[(1, 28820340), (2, 14410170), (3, 9606780), (4, 7205085), (5, 5764068), (6, 4803390), (9, 3202260), (10, 2882034), (12, 2401695), (15, 1921356), (18, 1601130), (19, 1516860), (20, 1441017), (27, 1067420), (30, 960678), (36, 800565), (38, 758430), (45, 640452), (53, 543780), (54, 533710), (57, 505620), (60, 480339), (76, 379215), (90, 320226), (95, 303372), (106, 271890), (108, 266855), (114, 252810), (135, 213484), (159, 181260), (171, 168540), (180, 160113), (190, 151686), (212, 135945), (228, 126405), (265, 108756), (270, 106742), (285, 101124), (318, 90630), (342, 84270), (380, 75843), (477, 60420), (513, 56180), (530, 54378), (540, 53371), (570, 50562), (636, 45315), (684, 42135), (795, 36252), (855, 33708), (954, 30210), (1007, 28620), (1026, 28090), (1060, 27189), (1140, 25281), (1431, 20140), (1590, 18126), (1710, 16854), (1908, 15105), (2014, 14310), (2052, 14045), (2385, 12084), (2565, 11236), (2809, 10260), (2862, 10070), (3021, 9540), (3180, 9063), (3420, 8427), (4028, 7155), (4770, 6042), (5035, 5724), (5130, 5618)]