65888780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 141190560

約数和(自身を除く): 75301780

約数列:

[1, 2, 4, 5, 10, 20, 137, 139, 173, 274, 278, 346, 548, 556, 685, 692, 695, 865, 1370, 1390, 1730, 2740, 2780, 3460, 19043, 23701, 24047, 38086, 47402, 48094, 76172, 94804, 95215, 96188, 118505, 120235, 190430, 237010, 240470, 380860, 474020, 480940, 3294439, 6588878, 13177756, 16472195, 32944390, 65888780]

約数ペア:

[(1, 65888780), (2, 32944390), (4, 16472195), (5, 13177756), (10, 6588878), (20, 3294439), (137, 480940), (139, 474020), (173, 380860), (274, 240470), (278, 237010), (346, 190430), (548, 120235), (556, 118505), (685, 96188), (692, 95215), (695, 94804), (865, 76172), (1370, 48094), (1390, 47402), (1730, 38086), (2740, 24047), (2780, 23701), (3460, 19043)]