438291520

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:380

約数の個数: 112

約数和(自身を含む): 1074456576

約数和(自身を除く): 636165056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 101, 142, 160, 191, 202, 284, 320, 355, 382, 404, 505, 568, 710, 764, 808, 955, 1010, 1136, 1420, 1528, 1616, 1910, 2020, 2272, 2840, 3056, 3232, 3820, 4040, 4544, 5680, 6112, 6464, 7171, 7640, 8080, 11360, 12224, 13561, 14342, 15280, 16160, 19291, 22720, 27122, 28684, 30560, 32320, 35855, 38582, 54244, 57368, 61120, 67805, 71710, 77164, 96455, 108488, 114736, 135610, 143420, 154328, 192910, 216976, 229472, 271220, 286840, 308656, 385820, 433952, 458944, 542440, 573680, 617312, 771640, 867904, 1084880, 1147360, 1234624, 1369661, 1543280, 2169760, 2294720, 2739322, 3086560, 4339520, 5478644, 6173120, 6848305, 10957288, 13696610, 21914576, 27393220, 43829152, 54786440, 87658304, 109572880, 219145760, 438291520]

約数ペア:

[(1, 438291520), (2, 219145760), (4, 109572880), (5, 87658304), (8, 54786440), (10, 43829152), (16, 27393220), (20, 21914576), (32, 13696610), (40, 10957288), (64, 6848305), (71, 6173120), (80, 5478644), (101, 4339520), (142, 3086560), (160, 2739322), (191, 2294720), (202, 2169760), (284, 1543280), (320, 1369661), (355, 1234624), (382, 1147360), (404, 1084880), (505, 867904), (568, 771640), (710, 617312), (764, 573680), (808, 542440), (955, 458944), (1010, 433952), (1136, 385820), (1420, 308656), (1528, 286840), (1616, 271220), (1910, 229472), (2020, 216976), (2272, 192910), (2840, 154328), (3056, 143420), (3232, 135610), (3820, 114736), (4040, 108488), (4544, 96455), (5680, 77164), (6112, 71710), (6464, 67805), (7171, 61120), (7640, 57368), (8080, 54244), (11360, 38582), (12224, 35855), (13561, 32320), (14342, 30560), (15280, 28684), (16160, 27122), (19291, 22720)]