1008990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 2790720

約数和(自身を除く): 1781730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 101, 111, 135, 185, 202, 222, 270, 303, 333, 370, 505, 555, 606, 666, 909, 999, 1010, 1110, 1515, 1665, 1818, 1998, 2727, 3030, 3330, 3737, 4545, 4995, 5454, 7474, 9090, 9990, 11211, 13635, 18685, 22422, 27270, 33633, 37370, 56055, 67266, 100899, 112110, 168165, 201798, 336330, 504495, 1008990]

約数ペア:

[(1, 1008990), (2, 504495), (3, 336330), (5, 201798), (6, 168165), (9, 112110), (10, 100899), (15, 67266), (18, 56055), (27, 37370), (30, 33633), (37, 27270), (45, 22422), (54, 18685), (74, 13635), (90, 11211), (101, 9990), (111, 9090), (135, 7474), (185, 5454), (202, 4995), (222, 4545), (270, 3737), (303, 3330), (333, 3030), (370, 2727), (505, 1998), (555, 1818), (606, 1665), (666, 1515), (909, 1110), (999, 1010)]