56539820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 129040128

約数和(自身を除く): 72500308

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 191, 205, 361, 380, 382, 410, 722, 764, 779, 820, 955, 1444, 1558, 1805, 1910, 3116, 3610, 3629, 3820, 3895, 7220, 7258, 7790, 7831, 14516, 14801, 15580, 15662, 18145, 29602, 31324, 36290, 39155, 59204, 68951, 72580, 74005, 78310, 137902, 148010, 148789, 156620, 275804, 296020, 297578, 344755, 595156, 689510, 743945, 1379020, 1487890, 2826991, 2975780, 5653982, 11307964, 14134955, 28269910, 56539820]

約数ペア:

[(1, 56539820), (2, 28269910), (4, 14134955), (5, 11307964), (10, 5653982), (19, 2975780), (20, 2826991), (38, 1487890), (41, 1379020), (76, 743945), (82, 689510), (95, 595156), (164, 344755), (190, 297578), (191, 296020), (205, 275804), (361, 156620), (380, 148789), (382, 148010), (410, 137902), (722, 78310), (764, 74005), (779, 72580), (820, 68951), (955, 59204), (1444, 39155), (1558, 36290), (1805, 31324), (1910, 29602), (3116, 18145), (3610, 15662), (3629, 15580), (3820, 14801), (3895, 14516), (7220, 7831), (7258, 7790)]