681162008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{3907}}^1$

素因数の和:4000

約数の個数: 64

約数和(自身を含む): 1425638400

約数和(自身を除く): 744476392

約数列:

[1, 2, 4, 8, 19, 31, 37, 38, 62, 74, 76, 124, 148, 152, 248, 296, 589, 703, 1147, 1178, 1406, 2294, 2356, 2812, 3907, 4588, 4712, 5624, 7814, 9176, 15628, 21793, 31256, 43586, 74233, 87172, 121117, 144559, 148466, 174344, 242234, 289118, 296932, 484468, 578236, 593864, 968936, 1156472, 2301223, 2746621, 4481329, 4602446, 5493242, 8962658, 9204892, 10986484, 17925316, 18409784, 21972968, 35850632, 85145251, 170290502, 340581004, 681162008]

約数ペア:

[(1, 681162008), (2, 340581004), (4, 170290502), (8, 85145251), (19, 35850632), (31, 21972968), (37, 18409784), (38, 17925316), (62, 10986484), (74, 9204892), (76, 8962658), (124, 5493242), (148, 4602446), (152, 4481329), (248, 2746621), (296, 2301223), (589, 1156472), (703, 968936), (1147, 593864), (1178, 578236), (1406, 484468), (2294, 296932), (2356, 289118), (2812, 242234), (3907, 174344), (4588, 148466), (4712, 144559), (5624, 121117), (7814, 87172), (9176, 74233), (15628, 43586), (21793, 31256)]