381505280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{227}}^1$

素因数の和:362

約数の個数: 144

約数和(自身を含む): 998240544

約数和(自身を除く): 616735264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 101, 104, 128, 130, 160, 202, 208, 227, 256, 260, 320, 404, 416, 454, 505, 520, 640, 808, 832, 908, 1010, 1040, 1135, 1280, 1313, 1616, 1664, 1816, 2020, 2080, 2270, 2626, 2951, 3232, 3328, 3632, 4040, 4160, 4540, 5252, 5902, 6464, 6565, 7264, 8080, 8320, 9080, 10504, 11804, 12928, 13130, 14528, 14755, 16160, 16640, 18160, 21008, 22927, 23608, 25856, 26260, 29056, 29510, 32320, 36320, 42016, 45854, 47216, 52520, 58112, 59020, 64640, 72640, 84032, 91708, 94432, 105040, 114635, 118040, 129280, 145280, 168064, 183416, 188864, 210080, 229270, 236080, 290560, 298051, 336128, 366832, 377728, 420160, 458540, 472160, 596102, 733664, 755456, 840320, 917080, 944320, 1192204, 1467328, 1490255, 1680640, 1834160, 1888640, 2384408, 2934656, 2980510, 3668320, 3777280, 4768816, 5869312, 5961020, 7336640, 9537632, 11922040, 14673280, 19075264, 23844080, 29346560, 38150528, 47688160, 76301056, 95376320, 190752640, 381505280]

約数ペア:

[(1, 381505280), (2, 190752640), (4, 95376320), (5, 76301056), (8, 47688160), (10, 38150528), (13, 29346560), (16, 23844080), (20, 19075264), (26, 14673280), (32, 11922040), (40, 9537632), (52, 7336640), (64, 5961020), (65, 5869312), (80, 4768816), (101, 3777280), (104, 3668320), (128, 2980510), (130, 2934656), (160, 2384408), (202, 1888640), (208, 1834160), (227, 1680640), (256, 1490255), (260, 1467328), (320, 1192204), (404, 944320), (416, 917080), (454, 840320), (505, 755456), (520, 733664), (640, 596102), (808, 472160), (832, 458540), (908, 420160), (1010, 377728), (1040, 366832), (1135, 336128), (1280, 298051), (1313, 290560), (1616, 236080), (1664, 229270), (1816, 210080), (2020, 188864), (2080, 183416), (2270, 168064), (2626, 145280), (2951, 129280), (3232, 118040), (3328, 114635), (3632, 105040), (4040, 94432), (4160, 91708), (4540, 84032), (5252, 72640), (5902, 64640), (6464, 59020), (6565, 58112), (7264, 52520), (8080, 47216), (8320, 45854), (9080, 42016), (10504, 36320), (11804, 32320), (12928, 29510), (13130, 29056), (14528, 26260), (14755, 25856), (16160, 23608), (16640, 22927), (18160, 21008)]