81272970

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{373}}^1$

素因数の和:661

約数の個数: 80

約数和(自身を含む): 219934440

約数和(自身を除く): 138661470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 269, 270, 373, 405, 538, 746, 807, 810, 1119, 1345, 1614, 1865, 2238, 2421, 2690, 3357, 3730, 4035, 4842, 5595, 6714, 7263, 8070, 10071, 11190, 12105, 14526, 16785, 20142, 21789, 24210, 30213, 33570, 36315, 43578, 50355, 60426, 72630, 100337, 100710, 108945, 151065, 200674, 217890, 301011, 302130, 501685, 602022, 903033, 1003370, 1505055, 1806066, 2709099, 3010110, 4515165, 5418198, 8127297, 9030330, 13545495, 16254594, 27090990, 40636485, 81272970]

約数ペア:

[(1, 81272970), (2, 40636485), (3, 27090990), (5, 16254594), (6, 13545495), (9, 9030330), (10, 8127297), (15, 5418198), (18, 4515165), (27, 3010110), (30, 2709099), (45, 1806066), (54, 1505055), (81, 1003370), (90, 903033), (135, 602022), (162, 501685), (269, 302130), (270, 301011), (373, 217890), (405, 200674), (538, 151065), (746, 108945), (807, 100710), (810, 100337), (1119, 72630), (1345, 60426), (1614, 50355), (1865, 43578), (2238, 36315), (2421, 33570), (2690, 30213), (3357, 24210), (3730, 21789), (4035, 20142), (4842, 16785), (5595, 14526), (6714, 12105), (7263, 11190), (8070, 10071)]