131728900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 108

約数和(自身を含む): 312519060

約数和(自身を除く): 180790160

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 89, 95, 100, 164, 178, 190, 205, 356, 361, 380, 410, 445, 475, 722, 779, 820, 890, 950, 1025, 1444, 1558, 1691, 1780, 1805, 1900, 2050, 2225, 3116, 3382, 3610, 3649, 3895, 4100, 4450, 6764, 7220, 7298, 7790, 8455, 8900, 9025, 14596, 14801, 15580, 16910, 18050, 18245, 19475, 29602, 32129, 33820, 36100, 36490, 38950, 42275, 59204, 64258, 69331, 72980, 74005, 77900, 84550, 91225, 128516, 138662, 148010, 160645, 169100, 182450, 277324, 296020, 321290, 346655, 364900, 370025, 642580, 693310, 740050, 803225, 1317289, 1386620, 1480100, 1606450, 1733275, 2634578, 3212900, 3466550, 5269156, 6586445, 6933100, 13172890, 26345780, 32932225, 65864450, 131728900]

約数ペア:

[(1, 131728900), (2, 65864450), (4, 32932225), (5, 26345780), (10, 13172890), (19, 6933100), (20, 6586445), (25, 5269156), (38, 3466550), (41, 3212900), (50, 2634578), (76, 1733275), (82, 1606450), (89, 1480100), (95, 1386620), (100, 1317289), (164, 803225), (178, 740050), (190, 693310), (205, 642580), (356, 370025), (361, 364900), (380, 346655), (410, 321290), (445, 296020), (475, 277324), (722, 182450), (779, 169100), (820, 160645), (890, 148010), (950, 138662), (1025, 128516), (1444, 91225), (1558, 84550), (1691, 77900), (1780, 74005), (1805, 72980), (1900, 69331), (2050, 64258), (2225, 59204), (3116, 42275), (3382, 38950), (3610, 36490), (3649, 36100), (3895, 33820), (4100, 32129), (4450, 29602), (6764, 19475), (7220, 18245), (7298, 18050), (7790, 16910), (8455, 15580), (8900, 14801), (9025, 14596)]