20899901048

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{1117}}^1$

素因数の和:1729

約数の個数: 128

約数和(自身を含む): 47162606400

約数和(自身を除く): 26262705352

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 221, 247, 323, 442, 494, 557, 646, 884, 988, 1114, 1117, 1292, 1768, 1976, 2228, 2234, 2584, 4199, 4456, 4468, 7241, 8398, 8936, 9469, 10583, 14482, 14521, 16796, 18938, 18989, 21166, 21223, 28964, 29042, 33592, 37876, 37978, 42332, 42446, 57928, 58084, 75752, 75956, 84664, 84892, 116168, 123097, 137579, 151912, 169784, 179911, 246194, 246857, 275158, 275899, 359822, 360791, 492388, 493714, 550316, 551798, 622169, 719644, 721582, 984776, 987428, 1100632, 1103596, 1244338, 1439288, 1443164, 1974856, 2207192, 2338843, 2488676, 2886328, 4677686, 4690283, 4977352, 8088197, 9355372, 9380566, 10576873, 11821211, 16176394, 18710744, 18761132, 21153746, 23642422, 32352788, 37522264, 42307492, 47284844, 64705576, 84614984, 94569688, 137499349, 153675743, 200960587, 274998698, 307351486, 401921174, 549997396, 614702972, 803842348, 1099994792, 1229405944, 1607684696, 2612487631, 5224975262, 10449950524, 20899901048]

約数ペア:

[(1, 20899901048), (2, 10449950524), (4, 5224975262), (8, 2612487631), (13, 1607684696), (17, 1229405944), (19, 1099994792), (26, 803842348), (34, 614702972), (38, 549997396), (52, 401921174), (68, 307351486), (76, 274998698), (104, 200960587), (136, 153675743), (152, 137499349), (221, 94569688), (247, 84614984), (323, 64705576), (442, 47284844), (494, 42307492), (557, 37522264), (646, 32352788), (884, 23642422), (988, 21153746), (1114, 18761132), (1117, 18710744), (1292, 16176394), (1768, 11821211), (1976, 10576873), (2228, 9380566), (2234, 9355372), (2584, 8088197), (4199, 4977352), (4456, 4690283), (4468, 4677686), (7241, 2886328), (8398, 2488676), (8936, 2338843), (9469, 2207192), (10583, 1974856), (14482, 1443164), (14521, 1439288), (16796, 1244338), (18938, 1103596), (18989, 1100632), (21166, 987428), (21223, 984776), (28964, 721582), (29042, 719644), (33592, 622169), (37876, 551798), (37978, 550316), (42332, 493714), (42446, 492388), (57928, 360791), (58084, 359822), (75752, 275899), (75956, 275158), (84664, 246857), (84892, 246194), (116168, 179911), (123097, 169784), (137579, 151912)]