78784440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1321}}^1$

素因数の和:1413

約数の個数: 128

約数和(自身を含む): 274129920

約数和(自身を除く): 195345480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1321, 1420, 1491, 1704, 1988, 2130, 2485, 2642, 2840, 2982, 3963, 3976, 4260, 4970, 5284, 5964, 6605, 7455, 7926, 8520, 9247, 9940, 10568, 11928, 13210, 14910, 15852, 18494, 19815, 19880, 26420, 27741, 29820, 31704, 36988, 39630, 46235, 52840, 55482, 59640, 73976, 79260, 92470, 93791, 110964, 138705, 158520, 184940, 187582, 221928, 277410, 281373, 369880, 375164, 468955, 554820, 562746, 656537, 750328, 937910, 1109640, 1125492, 1313074, 1406865, 1875820, 1969611, 2250984, 2626148, 2813730, 3282685, 3751640, 3939222, 5252296, 5627460, 6565370, 7878444, 9848055, 11254920, 13130740, 15756888, 19696110, 26261480, 39392220, 78784440]

約数ペア:

[(1, 78784440), (2, 39392220), (3, 26261480), (4, 19696110), (5, 15756888), (6, 13130740), (7, 11254920), (8, 9848055), (10, 7878444), (12, 6565370), (14, 5627460), (15, 5252296), (20, 3939222), (21, 3751640), (24, 3282685), (28, 2813730), (30, 2626148), (35, 2250984), (40, 1969611), (42, 1875820), (56, 1406865), (60, 1313074), (70, 1125492), (71, 1109640), (84, 937910), (105, 750328), (120, 656537), (140, 562746), (142, 554820), (168, 468955), (210, 375164), (213, 369880), (280, 281373), (284, 277410), (355, 221928), (420, 187582), (426, 184940), (497, 158520), (568, 138705), (710, 110964), (840, 93791), (852, 92470), (994, 79260), (1065, 73976), (1321, 59640), (1420, 55482), (1491, 52840), (1704, 46235), (1988, 39630), (2130, 36988), (2485, 31704), (2642, 29820), (2840, 27741), (2982, 26420), (3963, 19880), (3976, 19815), (4260, 18494), (4970, 15852), (5284, 14910), (5964, 13210), (6605, 11928), (7455, 10568), (7926, 9940), (8520, 9247)]