7873880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 20623680

約数和(自身を除く): 12749800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 461, 488, 610, 854, 922, 1220, 1708, 1844, 2135, 2305, 2440, 3227, 3416, 3688, 4270, 4610, 6454, 8540, 9220, 12908, 16135, 17080, 18440, 25816, 28121, 32270, 56242, 64540, 112484, 129080, 140605, 196847, 224968, 281210, 393694, 562420, 787388, 984235, 1124840, 1574776, 1968470, 3936940, 7873880]

約数ペア:

[(1, 7873880), (2, 3936940), (4, 1968470), (5, 1574776), (7, 1124840), (8, 984235), (10, 787388), (14, 562420), (20, 393694), (28, 281210), (35, 224968), (40, 196847), (56, 140605), (61, 129080), (70, 112484), (122, 64540), (140, 56242), (244, 32270), (280, 28121), (305, 25816), (427, 18440), (461, 17080), (488, 16135), (610, 12908), (854, 9220), (922, 8540), (1220, 6454), (1708, 4610), (1844, 4270), (2135, 3688), (2305, 3416), (2440, 3227)]