20187659440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1913}}^1$

素因数の和:2151

約数の個数: 160

約数和(自身を含む): 51634820160

約数和(自身を除く): 31447160720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 139, 146, 208, 260, 278, 292, 365, 520, 556, 584, 695, 730, 949, 1040, 1112, 1168, 1390, 1460, 1807, 1898, 1913, 2224, 2780, 2920, 3614, 3796, 3826, 4745, 5560, 5840, 7228, 7592, 7652, 9035, 9490, 9565, 10147, 11120, 14456, 15184, 15304, 18070, 18980, 19130, 20294, 24869, 28912, 30608, 36140, 37960, 38260, 40588, 49738, 50735, 72280, 75920, 76520, 81176, 99476, 101470, 124345, 131911, 139649, 144560, 153040, 162352, 198952, 202940, 248690, 263822, 265907, 279298, 397904, 405880, 497380, 527644, 531814, 558596, 659555, 698245, 811760, 994760, 1055288, 1063628, 1117192, 1319110, 1329535, 1396490, 1815437, 1989520, 2110576, 2127256, 2234384, 2638220, 2659070, 2792980, 3456791, 3630874, 4254512, 5276440, 5318140, 5585960, 6913582, 7261748, 9077185, 10552880, 10636280, 11171920, 13827164, 14523496, 17283955, 18154370, 19411211, 21272560, 27654328, 29046992, 34567910, 36308740, 38822422, 55308656, 69135820, 72617480, 77644844, 97056055, 138271640, 145234960, 155289688, 194112110, 252345743, 276543280, 310579376, 388224220, 504691486, 776448440, 1009382972, 1261728715, 1552896880, 2018765944, 2523457430, 4037531888, 5046914860, 10093829720, 20187659440]

約数ペア:

[(1, 20187659440), (2, 10093829720), (4, 5046914860), (5, 4037531888), (8, 2523457430), (10, 2018765944), (13, 1552896880), (16, 1261728715), (20, 1009382972), (26, 776448440), (40, 504691486), (52, 388224220), (65, 310579376), (73, 276543280), (80, 252345743), (104, 194112110), (130, 155289688), (139, 145234960), (146, 138271640), (208, 97056055), (260, 77644844), (278, 72617480), (292, 69135820), (365, 55308656), (520, 38822422), (556, 36308740), (584, 34567910), (695, 29046992), (730, 27654328), (949, 21272560), (1040, 19411211), (1112, 18154370), (1168, 17283955), (1390, 14523496), (1460, 13827164), (1807, 11171920), (1898, 10636280), (1913, 10552880), (2224, 9077185), (2780, 7261748), (2920, 6913582), (3614, 5585960), (3796, 5318140), (3826, 5276440), (4745, 4254512), (5560, 3630874), (5840, 3456791), (7228, 2792980), (7592, 2659070), (7652, 2638220), (9035, 2234384), (9490, 2127256), (9565, 2110576), (10147, 1989520), (11120, 1815437), (14456, 1396490), (15184, 1329535), (15304, 1319110), (18070, 1117192), (18980, 1063628), (19130, 1055288), (20294, 994760), (24869, 811760), (28912, 698245), (30608, 659555), (36140, 558596), (37960, 531814), (38260, 527644), (40588, 497380), (49738, 405880), (50735, 397904), (72280, 279298), (75920, 265907), (76520, 263822), (81176, 248690), (99476, 202940), (101470, 198952), (124345, 162352), (131911, 153040), (139649, 144560)]