20518030078

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{6823}}^1$

素因数の和:6930

約数の個数: 96

約数和(自身を含む): 40281034752

約数和(自身を除く): 19763004674

約数列:

[1, 2, 7, 13, 14, 26, 31, 41, 62, 82, 91, 169, 182, 217, 287, 338, 403, 434, 533, 574, 806, 1066, 1183, 1271, 2366, 2542, 2821, 3731, 5239, 5642, 6823, 6929, 7462, 8897, 10478, 13646, 13858, 16523, 17794, 33046, 36673, 47761, 48503, 73346, 88699, 95522, 97006, 115661, 177398, 211513, 214799, 231322, 279743, 423026, 429598, 559486, 620893, 1153087, 1241786, 1480591, 1503593, 1958201, 2306174, 2749669, 2961182, 3007186, 3636659, 3916402, 5499338, 7273318, 8071609, 8672033, 16143218, 17344066, 19247683, 25456613, 35745697, 38495366, 47276567, 50913226, 60704231, 71491394, 94553134, 112736429, 121408462, 225472858, 250219879, 330935969, 500439758, 661871938, 789155003, 1465573577, 1578310006, 2931147154, 10259015039, 20518030078]

約数ペア:

[(1, 20518030078), (2, 10259015039), (7, 2931147154), (13, 1578310006), (14, 1465573577), (26, 789155003), (31, 661871938), (41, 500439758), (62, 330935969), (82, 250219879), (91, 225472858), (169, 121408462), (182, 112736429), (217, 94553134), (287, 71491394), (338, 60704231), (403, 50913226), (434, 47276567), (533, 38495366), (574, 35745697), (806, 25456613), (1066, 19247683), (1183, 17344066), (1271, 16143218), (2366, 8672033), (2542, 8071609), (2821, 7273318), (3731, 5499338), (5239, 3916402), (5642, 3636659), (6823, 3007186), (6929, 2961182), (7462, 2749669), (8897, 2306174), (10478, 1958201), (13646, 1503593), (13858, 1480591), (16523, 1241786), (17794, 1153087), (33046, 620893), (36673, 559486), (47761, 429598), (48503, 423026), (73346, 279743), (88699, 231322), (95522, 214799), (97006, 211513), (115661, 177398)]