81440744

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 208780740

約数和(自身を除く): 127339996

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 49, 56, 68, 77, 88, 98, 101, 119, 121, 136, 154, 187, 196, 202, 238, 242, 308, 374, 392, 404, 476, 484, 539, 616, 707, 748, 808, 833, 847, 952, 968, 1078, 1111, 1309, 1414, 1496, 1666, 1694, 1717, 2057, 2156, 2222, 2618, 2828, 3332, 3388, 3434, 4114, 4312, 4444, 4949, 5236, 5656, 5929, 6664, 6776, 6868, 7777, 8228, 8888, 9163, 9898, 10472, 11858, 12019, 12221, 13736, 14399, 15554, 16456, 18326, 18887, 19796, 23716, 24038, 24442, 28798, 31108, 36652, 37774, 39592, 47432, 48076, 48884, 54439, 57596, 62216, 73304, 75548, 84133, 85547, 96152, 97768, 100793, 108878, 115192, 132209, 151096, 168266, 171094, 201586, 207757, 217756, 264418, 336532, 342188, 403172, 415514, 435512, 528836, 598829, 673064, 684376, 806344, 831028, 925463, 1057672, 1197658, 1454299, 1662056, 1850926, 2395316, 2908598, 3701852, 4790632, 5817196, 7403704, 10180093, 11634392, 20360186, 40720372, 81440744]

約数ペア:

[(1, 81440744), (2, 40720372), (4, 20360186), (7, 11634392), (8, 10180093), (11, 7403704), (14, 5817196), (17, 4790632), (22, 3701852), (28, 2908598), (34, 2395316), (44, 1850926), (49, 1662056), (56, 1454299), (68, 1197658), (77, 1057672), (88, 925463), (98, 831028), (101, 806344), (119, 684376), (121, 673064), (136, 598829), (154, 528836), (187, 435512), (196, 415514), (202, 403172), (238, 342188), (242, 336532), (308, 264418), (374, 217756), (392, 207757), (404, 201586), (476, 171094), (484, 168266), (539, 151096), (616, 132209), (707, 115192), (748, 108878), (808, 100793), (833, 97768), (847, 96152), (952, 85547), (968, 84133), (1078, 75548), (1111, 73304), (1309, 62216), (1414, 57596), (1496, 54439), (1666, 48884), (1694, 48076), (1717, 47432), (2057, 39592), (2156, 37774), (2222, 36652), (2618, 31108), (2828, 28798), (3332, 24442), (3388, 24038), (3434, 23716), (4114, 19796), (4312, 18887), (4444, 18326), (4949, 16456), (5236, 15554), (5656, 14399), (5929, 13736), (6664, 12221), (6776, 12019), (6868, 11858), (7777, 10472), (8228, 9898), (8888, 9163)]