31717460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 73737216

約数和(自身を除く): 42019756

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 191, 230, 361, 380, 382, 437, 460, 722, 764, 874, 955, 1444, 1748, 1805, 1910, 2185, 3610, 3629, 3820, 4370, 4393, 7220, 7258, 8303, 8740, 8786, 14516, 16606, 17572, 18145, 21965, 33212, 36290, 41515, 43930, 68951, 72580, 83030, 83467, 87860, 137902, 166060, 166934, 275804, 333868, 344755, 417335, 689510, 834670, 1379020, 1585873, 1669340, 3171746, 6343492, 7929365, 15858730, 31717460]

約数ペア:

[(1, 31717460), (2, 15858730), (4, 7929365), (5, 6343492), (10, 3171746), (19, 1669340), (20, 1585873), (23, 1379020), (38, 834670), (46, 689510), (76, 417335), (92, 344755), (95, 333868), (115, 275804), (190, 166934), (191, 166060), (230, 137902), (361, 87860), (380, 83467), (382, 83030), (437, 72580), (460, 68951), (722, 43930), (764, 41515), (874, 36290), (955, 33212), (1444, 21965), (1748, 18145), (1805, 17572), (1910, 16606), (2185, 14516), (3610, 8786), (3629, 8740), (3820, 8303), (4370, 7258), (4393, 7220)]