28273860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:615

約数の個数: 120

約数和(自身を含む): 91719936

約数和(自身を除く): 63446076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 563, 620, 810, 837, 930, 1116, 1126, 1395, 1620, 1674, 1689, 1860, 2252, 2511, 2790, 2815, 3348, 3378, 4185, 5022, 5067, 5580, 5630, 6756, 8370, 8445, 10044, 10134, 11260, 12555, 15201, 16740, 16890, 17453, 20268, 25110, 25335, 30402, 33780, 34906, 45603, 50220, 50670, 52359, 60804, 69812, 76005, 87265, 91206, 101340, 104718, 152010, 157077, 174530, 182412, 209436, 228015, 261795, 304020, 314154, 349060, 456030, 471231, 523590, 628308, 785385, 912060, 942462, 1047180, 1413693, 1570770, 1884924, 2356155, 2827386, 3141540, 4712310, 5654772, 7068465, 9424620, 14136930, 28273860]

約数ペア:

[(1, 28273860), (2, 14136930), (3, 9424620), (4, 7068465), (5, 5654772), (6, 4712310), (9, 3141540), (10, 2827386), (12, 2356155), (15, 1884924), (18, 1570770), (20, 1413693), (27, 1047180), (30, 942462), (31, 912060), (36, 785385), (45, 628308), (54, 523590), (60, 471231), (62, 456030), (81, 349060), (90, 314154), (93, 304020), (108, 261795), (124, 228015), (135, 209436), (155, 182412), (162, 174530), (180, 157077), (186, 152010), (270, 104718), (279, 101340), (310, 91206), (324, 87265), (372, 76005), (405, 69812), (465, 60804), (540, 52359), (558, 50670), (563, 50220), (620, 45603), (810, 34906), (837, 33780), (930, 30402), (1116, 25335), (1126, 25110), (1395, 20268), (1620, 17453), (1674, 16890), (1689, 16740), (1860, 15201), (2252, 12555), (2511, 11260), (2790, 10134), (2815, 10044), (3348, 8445), (3378, 8370), (4185, 6756), (5022, 5630), (5067, 5580)]