19502280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 192

約数和(自身を含む): 74131200

約数和(自身を除く): 54628920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 71, 72, 84, 90, 105, 109, 120, 126, 140, 142, 168, 180, 210, 213, 218, 252, 280, 284, 315, 327, 355, 360, 420, 426, 436, 497, 504, 545, 568, 630, 639, 654, 710, 763, 840, 852, 872, 981, 994, 1065, 1090, 1260, 1278, 1308, 1420, 1491, 1526, 1635, 1704, 1962, 1988, 2130, 2180, 2289, 2485, 2520, 2556, 2616, 2840, 2982, 3052, 3195, 3270, 3815, 3924, 3976, 4260, 4360, 4473, 4578, 4905, 4970, 5112, 5964, 6104, 6390, 6540, 6867, 7455, 7630, 7739, 7848, 8520, 8946, 9156, 9810, 9940, 11445, 11928, 12780, 13080, 13734, 14910, 15260, 15478, 17892, 18312, 19620, 19880, 22365, 22890, 23217, 25560, 27468, 29820, 30520, 30956, 34335, 35784, 38695, 39240, 44730, 45780, 46434, 54173, 54936, 59640, 61912, 68670, 69651, 77390, 89460, 91560, 92868, 108346, 116085, 137340, 139302, 154780, 162519, 178920, 185736, 216692, 232170, 270865, 274680, 278604, 309560, 325038, 348255, 433384, 464340, 487557, 541730, 557208, 650076, 696510, 812595, 928680, 975114, 1083460, 1300152, 1393020, 1625190, 1950228, 2166920, 2437785, 2786040, 3250380, 3900456, 4875570, 6500760, 9751140, 19502280]

約数ペア:

[(1, 19502280), (2, 9751140), (3, 6500760), (4, 4875570), (5, 3900456), (6, 3250380), (7, 2786040), (8, 2437785), (9, 2166920), (10, 1950228), (12, 1625190), (14, 1393020), (15, 1300152), (18, 1083460), (20, 975114), (21, 928680), (24, 812595), (28, 696510), (30, 650076), (35, 557208), (36, 541730), (40, 487557), (42, 464340), (45, 433384), (56, 348255), (60, 325038), (63, 309560), (70, 278604), (71, 274680), (72, 270865), (84, 232170), (90, 216692), (105, 185736), (109, 178920), (120, 162519), (126, 154780), (140, 139302), (142, 137340), (168, 116085), (180, 108346), (210, 92868), (213, 91560), (218, 89460), (252, 77390), (280, 69651), (284, 68670), (315, 61912), (327, 59640), (355, 54936), (360, 54173), (420, 46434), (426, 45780), (436, 44730), (497, 39240), (504, 38695), (545, 35784), (568, 34335), (630, 30956), (639, 30520), (654, 29820), (710, 27468), (763, 25560), (840, 23217), (852, 22890), (872, 22365), (981, 19880), (994, 19620), (1065, 18312), (1090, 17892), (1260, 15478), (1278, 15260), (1308, 14910), (1420, 13734), (1491, 13080), (1526, 12780), (1635, 11928), (1704, 11445), (1962, 9940), (1988, 9810), (2130, 9156), (2180, 8946), (2289, 8520), (2485, 7848), (2520, 7739), (2556, 7630), (2616, 7455), (2840, 6867), (2982, 6540), (3052, 6390), (3195, 6104), (3270, 5964), (3815, 5112), (3924, 4970), (3976, 4905), (4260, 4578), (4360, 4473)]