643577858

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:408

約数の個数: 96

約数和(自身を含む): 1296010368

約数和(自身を除く): 652432510

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 49, 77, 98, 101, 154, 161, 202, 253, 257, 322, 506, 514, 539, 707, 1078, 1111, 1127, 1414, 1771, 1799, 2222, 2254, 2323, 2827, 3542, 3598, 4646, 4949, 5654, 5911, 7777, 9898, 11822, 12397, 12593, 15554, 16261, 19789, 24794, 25186, 25553, 25957, 32522, 39578, 41377, 51106, 51914, 54439, 65021, 82754, 108878, 113827, 130042, 138523, 178871, 181699, 227654, 277046, 285527, 289639, 357742, 363398, 455147, 571054, 579278, 597011, 910294, 1194022, 1252097, 1271893, 1998689, 2504194, 2543786, 3186029, 3997378, 4179077, 6372058, 6567121, 8358154, 13134242, 13990823, 27981646, 29253539, 45969847, 58507078, 91939694, 321788929, 643577858]

約数ペア:

[(1, 643577858), (2, 321788929), (7, 91939694), (11, 58507078), (14, 45969847), (22, 29253539), (23, 27981646), (46, 13990823), (49, 13134242), (77, 8358154), (98, 6567121), (101, 6372058), (154, 4179077), (161, 3997378), (202, 3186029), (253, 2543786), (257, 2504194), (322, 1998689), (506, 1271893), (514, 1252097), (539, 1194022), (707, 910294), (1078, 597011), (1111, 579278), (1127, 571054), (1414, 455147), (1771, 363398), (1799, 357742), (2222, 289639), (2254, 285527), (2323, 277046), (2827, 227654), (3542, 181699), (3598, 178871), (4646, 138523), (4949, 130042), (5654, 113827), (5911, 108878), (7777, 82754), (9898, 65021), (11822, 54439), (12397, 51914), (12593, 51106), (15554, 41377), (16261, 39578), (19789, 32522), (24794, 25957), (25186, 25553)]