209753880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3517}}^1$

素因数の和:3609

約数の個数: 128

約数和(自身を含む): 729492480

約数和(自身を除く): 519738600

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, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3517, 3976, 4260, 4970, 5964, 7034, 7455, 8520, 9940, 10551, 11928, 14068, 14910, 17585, 19880, 21102, 24619, 28136, 29820, 35170, 42204, 49238, 52755, 59640, 70340, 73857, 84408, 98476, 105510, 123095, 140680, 147714, 196952, 211020, 246190, 249707, 295428, 369285, 422040, 492380, 499414, 590856, 738570, 749121, 984760, 998828, 1248535, 1477140, 1498242, 1747949, 1997656, 2497070, 2954280, 2996484, 3495898, 3745605, 4994140, 5243847, 5992968, 6991796, 7491210, 8739745, 9988280, 10487694, 13983592, 14982420, 17479490, 20975388, 26219235, 29964840, 34958980, 41950776, 52438470, 69917960, 104876940, 209753880]

約数ペア:

[(1, 209753880), (2, 104876940), (3, 69917960), (4, 52438470), (5, 41950776), (6, 34958980), (7, 29964840), (8, 26219235), (10, 20975388), (12, 17479490), (14, 14982420), (15, 13983592), (20, 10487694), (21, 9988280), (24, 8739745), (28, 7491210), (30, 6991796), (35, 5992968), (40, 5243847), (42, 4994140), (56, 3745605), (60, 3495898), (70, 2996484), (71, 2954280), (84, 2497070), (105, 1997656), (120, 1747949), (140, 1498242), (142, 1477140), (168, 1248535), (210, 998828), (213, 984760), (280, 749121), (284, 738570), (355, 590856), (420, 499414), (426, 492380), (497, 422040), (568, 369285), (710, 295428), (840, 249707), (852, 246190), (994, 211020), (1065, 196952), (1420, 147714), (1491, 140680), (1704, 123095), (1988, 105510), (2130, 98476), (2485, 84408), (2840, 73857), (2982, 70340), (3517, 59640), (3976, 52755), (4260, 49238), (4970, 42204), (5964, 35170), (7034, 29820), (7455, 28136), (8520, 24619), (9940, 21102), (10551, 19880), (11928, 17585), (14068, 14910)]