20804460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1289}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 58514400

約数和(自身を除く): 37709940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 269, 538, 807, 1076, 1289, 1345, 1614, 2578, 2690, 3228, 3867, 4035, 5156, 5380, 6445, 7734, 8070, 12890, 15468, 16140, 19335, 25780, 38670, 77340, 346741, 693482, 1040223, 1386964, 1733705, 2080446, 3467410, 4160892, 5201115, 6934820, 10402230, 20804460]

約数ペア:

[(1, 20804460), (2, 10402230), (3, 6934820), (4, 5201115), (5, 4160892), (6, 3467410), (10, 2080446), (12, 1733705), (15, 1386964), (20, 1040223), (30, 693482), (60, 346741), (269, 77340), (538, 38670), (807, 25780), (1076, 19335), (1289, 16140), (1345, 15468), (1614, 12890), (2578, 8070), (2690, 7734), (3228, 6445), (3867, 5380), (4035, 5156)]