28656540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 97415136

約数和(自身を除く): 68758596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 246, 330, 353, 369, 396, 410, 451, 492, 495, 615, 660, 706, 738, 820, 902, 990, 1059, 1230, 1353, 1412, 1476, 1765, 1804, 1845, 1980, 2118, 2255, 2460, 2706, 3177, 3530, 3690, 3883, 4059, 4236, 4510, 5295, 5412, 6354, 6765, 7060, 7380, 7766, 8118, 9020, 10590, 11649, 12708, 13530, 14473, 15532, 15885, 16236, 19415, 20295, 21180, 23298, 27060, 28946, 31770, 34947, 38830, 40590, 43419, 46596, 57892, 58245, 63540, 69894, 72365, 77660, 81180, 86838, 116490, 130257, 139788, 144730, 159203, 173676, 174735, 217095, 232980, 260514, 289460, 318406, 349470, 434190, 477609, 521028, 636812, 651285, 698940, 796015, 868380, 955218, 1302570, 1432827, 1592030, 1910436, 2388045, 2605140, 2865654, 3184060, 4776090, 5731308, 7164135, 9552180, 14328270, 28656540]

約数ペア:

[(1, 28656540), (2, 14328270), (3, 9552180), (4, 7164135), (5, 5731308), (6, 4776090), (9, 3184060), (10, 2865654), (11, 2605140), (12, 2388045), (15, 1910436), (18, 1592030), (20, 1432827), (22, 1302570), (30, 955218), (33, 868380), (36, 796015), (41, 698940), (44, 651285), (45, 636812), (55, 521028), (60, 477609), (66, 434190), (82, 349470), (90, 318406), (99, 289460), (110, 260514), (123, 232980), (132, 217095), (164, 174735), (165, 173676), (180, 159203), (198, 144730), (205, 139788), (220, 130257), (246, 116490), (330, 86838), (353, 81180), (369, 77660), (396, 72365), (410, 69894), (451, 63540), (492, 58245), (495, 57892), (615, 46596), (660, 43419), (706, 40590), (738, 38830), (820, 34947), (902, 31770), (990, 28946), (1059, 27060), (1230, 23298), (1353, 21180), (1412, 20295), (1476, 19415), (1765, 16236), (1804, 15885), (1845, 15532), (1980, 14473), (2118, 13530), (2255, 12708), (2460, 11649), (2706, 10590), (3177, 9020), (3530, 8118), (3690, 7766), (3883, 7380), (4059, 7060), (4236, 6765), (4510, 6354), (5295, 5412)]