178989680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1093}}^1$

素因数の和:1218

約数の個数: 80

約数和(自身を含む): 439525440

約数和(自身を除く): 260535760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 356, 368, 445, 460, 712, 890, 920, 1093, 1424, 1780, 1840, 2047, 2186, 3560, 4094, 4372, 5465, 7120, 8188, 8744, 10235, 10930, 16376, 17488, 20470, 21860, 25139, 32752, 40940, 43720, 50278, 81880, 87440, 97277, 100556, 125695, 163760, 194554, 201112, 251390, 389108, 402224, 486385, 502780, 778216, 972770, 1005560, 1556432, 1945540, 2011120, 2237371, 3891080, 4474742, 7782160, 8949484, 11186855, 17898968, 22373710, 35797936, 44747420, 89494840, 178989680]

約数ペア:

[(1, 178989680), (2, 89494840), (4, 44747420), (5, 35797936), (8, 22373710), (10, 17898968), (16, 11186855), (20, 8949484), (23, 7782160), (40, 4474742), (46, 3891080), (80, 2237371), (89, 2011120), (92, 1945540), (115, 1556432), (178, 1005560), (184, 972770), (230, 778216), (356, 502780), (368, 486385), (445, 402224), (460, 389108), (712, 251390), (890, 201112), (920, 194554), (1093, 163760), (1424, 125695), (1780, 100556), (1840, 97277), (2047, 87440), (2186, 81880), (3560, 50278), (4094, 43720), (4372, 40940), (5465, 32752), (7120, 25139), (8188, 21860), (8744, 20470), (10235, 17488), (10930, 16376)]