1618449920

素因数分解:

$2^9\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4243}}^1$

素因数の和:4415

約数の個数: 80

約数和(自身を含む): 3907450800

約数和(自身を除く): 2289000880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 149, 160, 256, 298, 320, 512, 596, 640, 745, 1192, 1280, 1490, 2384, 2560, 2980, 4243, 4768, 5960, 8486, 9536, 11920, 16972, 19072, 21215, 23840, 33944, 38144, 42430, 47680, 67888, 76288, 84860, 95360, 135776, 169720, 190720, 271552, 339440, 381440, 543104, 632207, 678880, 1086208, 1264414, 1357760, 2172416, 2528828, 2715520, 3161035, 5057656, 5431040, 6322070, 10115312, 10862080, 12644140, 20230624, 25288280, 40461248, 50576560, 80922496, 101153120, 161844992, 202306240, 323689984, 404612480, 809224960, 1618449920]

約数ペア:

[(1, 1618449920), (2, 809224960), (4, 404612480), (5, 323689984), (8, 202306240), (10, 161844992), (16, 101153120), (20, 80922496), (32, 50576560), (40, 40461248), (64, 25288280), (80, 20230624), (128, 12644140), (149, 10862080), (160, 10115312), (256, 6322070), (298, 5431040), (320, 5057656), (512, 3161035), (596, 2715520), (640, 2528828), (745, 2172416), (1192, 1357760), (1280, 1264414), (1490, 1086208), (2384, 678880), (2560, 632207), (2980, 543104), (4243, 381440), (4768, 339440), (5960, 271552), (8486, 190720), (9536, 169720), (11920, 135776), (16972, 95360), (19072, 84860), (21215, 76288), (23840, 67888), (33944, 47680), (38144, 42430)]