26345780

素因数分解:

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

素因数の和:177

約数の個数: 72

約数和(自身を含む): 60487560

約数和(自身を除く): 34141780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 89, 95, 164, 178, 190, 205, 356, 361, 380, 410, 445, 722, 779, 820, 890, 1444, 1558, 1691, 1780, 1805, 3116, 3382, 3610, 3649, 3895, 6764, 7220, 7298, 7790, 8455, 14596, 14801, 15580, 16910, 18245, 29602, 32129, 33820, 36490, 59204, 64258, 69331, 72980, 74005, 128516, 138662, 148010, 160645, 277324, 296020, 321290, 346655, 642580, 693310, 1317289, 1386620, 2634578, 5269156, 6586445, 13172890, 26345780]

約数ペア:

[(1, 26345780), (2, 13172890), (4, 6586445), (5, 5269156), (10, 2634578), (19, 1386620), (20, 1317289), (38, 693310), (41, 642580), (76, 346655), (82, 321290), (89, 296020), (95, 277324), (164, 160645), (178, 148010), (190, 138662), (205, 128516), (356, 74005), (361, 72980), (380, 69331), (410, 64258), (445, 59204), (722, 36490), (779, 33820), (820, 32129), (890, 29602), (1444, 18245), (1558, 16910), (1691, 15580), (1780, 14801), (1805, 14596), (3116, 8455), (3382, 7790), (3610, 7298), (3649, 7220), (3895, 6764)]