405135780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{964609}}^1$

素因数の和:964628

約数の個数: 48

約数和(自身を含む): 1296435840

約数和(自身を除く): 891300060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 964609, 1929218, 2893827, 3858436, 4823045, 5787654, 6752263, 9646090, 11575308, 13504526, 14469135, 19292180, 20256789, 27009052, 28938270, 33761315, 40513578, 57876540, 67522630, 81027156, 101283945, 135045260, 202567890, 405135780]

約数ペア:

[(1, 405135780), (2, 202567890), (3, 135045260), (4, 101283945), (5, 81027156), (6, 67522630), (7, 57876540), (10, 40513578), (12, 33761315), (14, 28938270), (15, 27009052), (20, 20256789), (21, 19292180), (28, 14469135), (30, 13504526), (35, 11575308), (42, 9646090), (60, 6752263), (70, 5787654), (84, 4823045), (105, 3858436), (140, 2893827), (210, 1929218), (420, 964609)]