15939440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 25307920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 307, 440, 472, 590, 614, 649, 880, 944, 1180, 1228, 1298, 1535, 2360, 2456, 2596, 3070, 3245, 3377, 4720, 4912, 5192, 6140, 6490, 6754, 10384, 12280, 12980, 13508, 16885, 18113, 24560, 25960, 27016, 33770, 36226, 51920, 54032, 67540, 72452, 90565, 135080, 144904, 181130, 199243, 270160, 289808, 362260, 398486, 724520, 796972, 996215, 1449040, 1593944, 1992430, 3187888, 3984860, 7969720, 15939440]

約数ペア:

[(1, 15939440), (2, 7969720), (4, 3984860), (5, 3187888), (8, 1992430), (10, 1593944), (11, 1449040), (16, 996215), (20, 796972), (22, 724520), (40, 398486), (44, 362260), (55, 289808), (59, 270160), (80, 199243), (88, 181130), (110, 144904), (118, 135080), (176, 90565), (220, 72452), (236, 67540), (295, 54032), (307, 51920), (440, 36226), (472, 33770), (590, 27016), (614, 25960), (649, 24560), (880, 18113), (944, 16885), (1180, 13508), (1228, 12980), (1298, 12280), (1535, 10384), (2360, 6754), (2456, 6490), (2596, 6140), (3070, 5192), (3245, 4912), (3377, 4720)]