256778160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56311}}^1$

素因数の和:56346

約数の個数: 80

約数和(自身を含む): 837922560

約数和(自身を除く): 581144400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 56311, 112622, 168933, 225244, 281555, 337866, 450488, 563110, 675732, 844665, 900976, 1069909, 1126220, 1351464, 1689330, 2139818, 2252440, 2702928, 3209727, 3378660, 4279636, 4504880, 5349545, 6419454, 6757320, 8559272, 10699090, 12838908, 13514640, 16048635, 17118544, 21398180, 25677816, 32097270, 42796360, 51355632, 64194540, 85592720, 128389080, 256778160]

約数ペア:

[(1, 256778160), (2, 128389080), (3, 85592720), (4, 64194540), (5, 51355632), (6, 42796360), (8, 32097270), (10, 25677816), (12, 21398180), (15, 17118544), (16, 16048635), (19, 13514640), (20, 12838908), (24, 10699090), (30, 8559272), (38, 6757320), (40, 6419454), (48, 5349545), (57, 4504880), (60, 4279636), (76, 3378660), (80, 3209727), (95, 2702928), (114, 2252440), (120, 2139818), (152, 1689330), (190, 1351464), (228, 1126220), (240, 1069909), (285, 900976), (304, 844665), (380, 675732), (456, 563110), (570, 450488), (760, 337866), (912, 281555), (1140, 225244), (1520, 168933), (2280, 112622), (4560, 56311)]