18398940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:707

約数の個数: 96

約数和(自身を含む): 59802624

約数和(自身を除く): 41403684

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 617, 710, 852, 994, 1065, 1234, 1420, 1491, 1851, 1988, 2130, 2468, 2485, 2982, 3085, 3702, 4260, 4319, 4970, 5964, 6170, 7404, 7455, 8638, 9255, 9940, 12340, 12957, 14910, 17276, 18510, 21595, 25914, 29820, 37020, 43190, 43807, 51828, 64785, 86380, 87614, 129570, 131421, 175228, 219035, 259140, 262842, 306649, 438070, 525684, 613298, 657105, 876140, 919947, 1226596, 1314210, 1533245, 1839894, 2628420, 3066490, 3679788, 4599735, 6132980, 9199470, 18398940]

約数ペア:

[(1, 18398940), (2, 9199470), (3, 6132980), (4, 4599735), (5, 3679788), (6, 3066490), (7, 2628420), (10, 1839894), (12, 1533245), (14, 1314210), (15, 1226596), (20, 919947), (21, 876140), (28, 657105), (30, 613298), (35, 525684), (42, 438070), (60, 306649), (70, 262842), (71, 259140), (84, 219035), (105, 175228), (140, 131421), (142, 129570), (210, 87614), (213, 86380), (284, 64785), (355, 51828), (420, 43807), (426, 43190), (497, 37020), (617, 29820), (710, 25914), (852, 21595), (994, 18510), (1065, 17276), (1234, 14910), (1420, 12957), (1491, 12340), (1851, 9940), (1988, 9255), (2130, 8638), (2468, 7455), (2485, 7404), (2982, 6170), (3085, 5964), (3702, 4970), (4260, 4319)]