178525880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4703}}^1$

素因数の和:4800

約数の個数: 64

約数和(自身を含む): 438600960

約数和(自身を除く): 260075080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 949, 1460, 1898, 2920, 3796, 4703, 4745, 7592, 9406, 9490, 18812, 18980, 23515, 37624, 37960, 47030, 61139, 94060, 122278, 188120, 244556, 305695, 343319, 489112, 611390, 686638, 1222780, 1373276, 1716595, 2445560, 2746552, 3433190, 4463147, 6866380, 8926294, 13732760, 17852588, 22315735, 35705176, 44631470, 89262940, 178525880]

約数ペア:

[(1, 178525880), (2, 89262940), (4, 44631470), (5, 35705176), (8, 22315735), (10, 17852588), (13, 13732760), (20, 8926294), (26, 6866380), (40, 4463147), (52, 3433190), (65, 2746552), (73, 2445560), (104, 1716595), (130, 1373276), (146, 1222780), (260, 686638), (292, 611390), (365, 489112), (520, 343319), (584, 305695), (730, 244556), (949, 188120), (1460, 122278), (1898, 94060), (2920, 61139), (3796, 47030), (4703, 37960), (4745, 37624), (7592, 23515), (9406, 18980), (9490, 18812)]