2781780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 7910784

約数和(自身を除く): 5129004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 653, 710, 852, 1065, 1306, 1420, 1959, 2130, 2612, 3265, 3918, 4260, 6530, 7836, 9795, 13060, 19590, 39180, 46363, 92726, 139089, 185452, 231815, 278178, 463630, 556356, 695445, 927260, 1390890, 2781780]

約数ペア:

[(1, 2781780), (2, 1390890), (3, 927260), (4, 695445), (5, 556356), (6, 463630), (10, 278178), (12, 231815), (15, 185452), (20, 139089), (30, 92726), (60, 46363), (71, 39180), (142, 19590), (213, 13060), (284, 9795), (355, 7836), (426, 6530), (653, 4260), (710, 3918), (852, 3265), (1065, 2612), (1306, 2130), (1420, 1959)]