81818370

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:465

約数の個数: 128

約数和(自身を含む): 235872000

約数和(自身を除く): 154053630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 41, 45, 54, 57, 82, 90, 95, 114, 123, 135, 171, 190, 205, 246, 270, 285, 342, 369, 389, 410, 513, 570, 615, 738, 778, 779, 855, 1026, 1107, 1167, 1230, 1558, 1710, 1845, 1945, 2214, 2334, 2337, 2565, 3501, 3690, 3890, 3895, 4674, 5130, 5535, 5835, 7002, 7011, 7391, 7790, 10503, 11070, 11670, 11685, 14022, 14782, 15949, 17505, 21006, 21033, 22173, 23370, 31898, 35010, 35055, 36955, 42066, 44346, 47847, 52515, 66519, 70110, 73910, 79745, 95694, 105030, 105165, 110865, 133038, 143541, 159490, 199557, 210330, 221730, 239235, 287082, 303031, 332595, 399114, 430623, 478470, 606062, 665190, 717705, 861246, 909093, 997785, 1435410, 1515155, 1818186, 1995570, 2153115, 2727279, 3030310, 4306230, 4545465, 5454558, 8181837, 9090930, 13636395, 16363674, 27272790, 40909185, 81818370]

約数ペア:

[(1, 81818370), (2, 40909185), (3, 27272790), (5, 16363674), (6, 13636395), (9, 9090930), (10, 8181837), (15, 5454558), (18, 4545465), (19, 4306230), (27, 3030310), (30, 2727279), (38, 2153115), (41, 1995570), (45, 1818186), (54, 1515155), (57, 1435410), (82, 997785), (90, 909093), (95, 861246), (114, 717705), (123, 665190), (135, 606062), (171, 478470), (190, 430623), (205, 399114), (246, 332595), (270, 303031), (285, 287082), (342, 239235), (369, 221730), (389, 210330), (410, 199557), (513, 159490), (570, 143541), (615, 133038), (738, 110865), (778, 105165), (779, 105030), (855, 95694), (1026, 79745), (1107, 73910), (1167, 70110), (1230, 66519), (1558, 52515), (1710, 47847), (1845, 44346), (1945, 42066), (2214, 36955), (2334, 35055), (2337, 35010), (2565, 31898), (3501, 23370), (3690, 22173), (3890, 21033), (3895, 21006), (4674, 17505), (5130, 15949), (5535, 14782), (5835, 14022), (7002, 11685), (7011, 11670), (7391, 11070), (7790, 10503)]