281306970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:441

約数の個数: 192

約数和(自身を含む): 894965760

約数和(自身を除く): 613658790

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 57, 63, 70, 71, 90, 95, 105, 114, 126, 133, 142, 171, 190, 210, 213, 266, 285, 315, 331, 342, 355, 399, 426, 497, 570, 630, 639, 662, 665, 710, 798, 855, 993, 994, 1065, 1197, 1278, 1330, 1349, 1491, 1655, 1710, 1986, 1995, 2130, 2317, 2394, 2485, 2698, 2979, 2982, 3195, 3310, 3990, 4047, 4473, 4634, 4965, 4970, 5958, 5985, 6289, 6390, 6745, 6951, 7455, 8094, 8946, 9443, 9930, 11585, 11970, 12141, 12578, 13490, 13902, 14895, 14910, 18867, 18886, 20235, 20853, 22365, 23170, 23501, 24282, 28329, 29790, 31445, 34755, 37734, 40470, 41706, 44023, 44730, 47002, 47215, 56601, 56658, 60705, 62890, 69510, 70503, 84987, 88046, 94335, 94430, 104265, 113202, 117505, 121410, 132069, 141006, 141645, 164507, 169974, 188670, 208530, 211509, 220115, 235010, 264138, 283005, 283290, 329014, 352515, 396207, 423018, 424935, 440230, 446519, 493521, 566010, 660345, 705030, 792414, 822535, 849870, 893038, 987042, 1057545, 1320690, 1339557, 1480563, 1645070, 1981035, 2115090, 2232595, 2467605, 2679114, 2961126, 3125633, 3962070, 4018671, 4465190, 4935210, 6251266, 6697785, 7402815, 8037342, 9376899, 13395570, 14805630, 15628165, 18753798, 20093355, 28130697, 31256330, 40186710, 46884495, 56261394, 93768990, 140653485, 281306970]

約数ペア:

[(1, 281306970), (2, 140653485), (3, 93768990), (5, 56261394), (6, 46884495), (7, 40186710), (9, 31256330), (10, 28130697), (14, 20093355), (15, 18753798), (18, 15628165), (19, 14805630), (21, 13395570), (30, 9376899), (35, 8037342), (38, 7402815), (42, 6697785), (45, 6251266), (57, 4935210), (63, 4465190), (70, 4018671), (71, 3962070), (90, 3125633), (95, 2961126), (105, 2679114), (114, 2467605), (126, 2232595), (133, 2115090), (142, 1981035), (171, 1645070), (190, 1480563), (210, 1339557), (213, 1320690), (266, 1057545), (285, 987042), (315, 893038), (331, 849870), (342, 822535), (355, 792414), (399, 705030), (426, 660345), (497, 566010), (570, 493521), (630, 446519), (639, 440230), (662, 424935), (665, 423018), (710, 396207), (798, 352515), (855, 329014), (993, 283290), (994, 283005), (1065, 264138), (1197, 235010), (1278, 220115), (1330, 211509), (1349, 208530), (1491, 188670), (1655, 169974), (1710, 164507), (1986, 141645), (1995, 141006), (2130, 132069), (2317, 121410), (2394, 117505), (2485, 113202), (2698, 104265), (2979, 94430), (2982, 94335), (3195, 88046), (3310, 84987), (3990, 70503), (4047, 69510), (4473, 62890), (4634, 60705), (4965, 56658), (4970, 56601), (5958, 47215), (5985, 47002), (6289, 44730), (6390, 44023), (6745, 41706), (6951, 40470), (7455, 37734), (8094, 34755), (8946, 31445), (9443, 29790), (9930, 28329), (11585, 24282), (11970, 23501), (12141, 23170), (12578, 22365), (13490, 20853), (13902, 20235), (14895, 18886), (14910, 18867)]