1238059520

素因数分解:

$2^9\times 5^1\times {\mathrm{563}}^1\times {\mathrm{859}}^1$

素因数の和:1445

約数の個数: 80

約数和(自身を含む): 2977175520

約数和(自身を除く): 1739116000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 563, 640, 859, 1126, 1280, 1718, 2252, 2560, 2815, 3436, 4295, 4504, 5630, 6872, 8590, 9008, 11260, 13744, 17180, 18016, 22520, 27488, 34360, 36032, 45040, 54976, 68720, 72064, 90080, 109952, 137440, 144128, 180160, 219904, 274880, 288256, 360320, 439808, 483617, 549760, 720640, 967234, 1099520, 1441280, 1934468, 2199040, 2418085, 3868936, 4836170, 7737872, 9672340, 15475744, 19344680, 30951488, 38689360, 61902976, 77378720, 123805952, 154757440, 247611904, 309514880, 619029760, 1238059520]

約数ペア:

[(1, 1238059520), (2, 619029760), (4, 309514880), (5, 247611904), (8, 154757440), (10, 123805952), (16, 77378720), (20, 61902976), (32, 38689360), (40, 30951488), (64, 19344680), (80, 15475744), (128, 9672340), (160, 7737872), (256, 4836170), (320, 3868936), (512, 2418085), (563, 2199040), (640, 1934468), (859, 1441280), (1126, 1099520), (1280, 967234), (1718, 720640), (2252, 549760), (2560, 483617), (2815, 439808), (3436, 360320), (4295, 288256), (4504, 274880), (5630, 219904), (6872, 180160), (8590, 144128), (9008, 137440), (11260, 109952), (13744, 90080), (17180, 72064), (18016, 68720), (22520, 54976), (27488, 45040), (34360, 36032)]