8989964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 17875200

約数和(自身を除く): 8885236

約数列:

[1, 2, 4, 19, 23, 37, 38, 46, 74, 76, 92, 139, 148, 278, 437, 556, 703, 851, 874, 1406, 1702, 1748, 2641, 2812, 3197, 3404, 5143, 5282, 6394, 10286, 10564, 12788, 16169, 20572, 32338, 60743, 64676, 97717, 118289, 121486, 195434, 236578, 242972, 390868, 473156, 2247491, 4494982, 8989964]

約数ペア:

[(1, 8989964), (2, 4494982), (4, 2247491), (19, 473156), (23, 390868), (37, 242972), (38, 236578), (46, 195434), (74, 121486), (76, 118289), (92, 97717), (139, 64676), (148, 60743), (278, 32338), (437, 20572), (556, 16169), (703, 12788), (851, 10564), (874, 10286), (1406, 6394), (1702, 5282), (1748, 5143), (2641, 3404), (2812, 3197)]